# GEM Forum **URL:** https://community.electricforum.com/c/gem-forum/101.md [Latest](https://community.electricforum.com/latest.md) · [Categories](https://community.electricforum.com/categories.md) · [Tags](https://community.electricforum.com/tags.md) --- ## [How To Fix -90 error code](https://community.electricforum.com/t/how-to-fix-90-error-code/27411)
**Author:** [@pchost](https://community.electricforum.com/u/pchost)\ **Replies:** 28\ **Last updated:** [August 30, 2026, 5:07pm UTC](https://community.electricforum.com/t/how-to-fix-90-error-code/27411 "2026-08-30T17:07:08Z")
I have seen the list of codes, but i have not seen any fix or how to trace the -90 error code (Terminal one is shorted to ground, input sensor error inspect motor controller). I have a 2000 GEM 4 person that was a basket… --- ## [Help diagnosing pedal to controller issues](https://community.electricforum.com/t/help-diagnosing-pedal-to-controller-issues/30667)
**Author:** [@otismoon504](https://community.electricforum.com/u/otismoon504)\ **Replies:** 31\ **Last updated:** [September 25, 2026, 4:25am UTC](https://community.electricforum.com/t/help-diagnosing-pedal-to-controller-issues/30667 "2026-09-25T04:25:31Z")
I’m testing all systems after a complete rebuild. No sure whats going on with my pedal or controller. It’s a 2002 with a T2 controller, not sure if it worked before and haven’t had it tested. After powering up and clear… --- ## [Working on another modified GEM for a parade](https://community.electricforum.com/t/working-on-another-modified-gem-for-a-parade/30686)
**Author:** [@Pythan](https://community.electricforum.com/u/Pythan)\ **Replies:** 2\ **Last updated:** [September 23, 2026, 5:47pm UTC](https://community.electricforum.com/t/working-on-another-modified-gem-for-a-parade/30686 "2026-09-23T17:47:18Z")
I wasn’t sure if I was going to do it, but I’m kinda heading that way. I have so much to do and I will start the actual mods in or around Jan. The cartoon car is the target.. or something close. Got two GEM donor cars… --- ## [2009 GEM e2 for sale](https://community.electricforum.com/t/2009-gem-e2-for-sale/29670)
**Author:** [@Supes30](https://community.electricforum.com/u/Supes30)\ **Replies:** 2\ **Last updated:** [September 22, 2026, 6:17pm UTC](https://community.electricforum.com/t/2009-gem-e2-for-sale/29670 "2026-09-22T18:17:02Z")
Purchased a few years ago to drive around the neighborhood with my boys. Boys are now grown, and no one uses it. 7.0 motor. In perfect working condition. Price is $4,500. --- ## [Help with complete rebuilding - initial test](https://community.electricforum.com/t/help-with-complete-rebuilding-initial-test/30659)
**Author:** [@otismoon504](https://community.electricforum.com/u/otismoon504)\ **Replies:** 12\ **Last updated:** [September 19, 2026, 11:22pm UTC](https://community.electricforum.com/t/help-with-complete-rebuilding-initial-test/30659 "2026-09-19T23:22:50Z")
Hello all! I have just completed a total rebuild of a 2002 4 seater. I’ll be powering it on for the first time and looking for some guidance on the order to power up the car and test each system with safety in mind. Here… --- ## [New Member here Gem e2](https://community.electricforum.com/t/new-member-here-gem-e2/30602)
**Author:** [@Ojo](https://community.electricforum.com/u/Ojo)\ **Replies:** 55\ **Last updated:** [September 18, 2026, 11:05pm UTC](https://community.electricforum.com/t/new-member-here-gem-e2/30602 "2026-09-18T23:05:24Z")
Hello all, after reading a lot of posts for some time, I’ve decided to sign in today. I’m from Germany and active member of the BGW golf cart forum for nearly 6 yrs now. After finishing a second Ezgo RXV, my new project… --- ## [2000 E285 - Lithium / Charger Swap - electrical issues](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657)
**Author:** [@alex2](https://community.electricforum.com/u/alex2)\ **Replies:** 29\ **Last updated:** [September 16, 2026, 4:28am UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657 "2026-09-16T04:28:15Z")
Good afternoon, Working on boss’s 2000 E285 - swapped in lithium battery pack and quickcharger from ride4fun and now having some odd electrical issues. Power on the cart and the normal startup happens and then will shu… --- ## [For sale: body parts for 2001 e825 4 seater](https://community.electricforum.com/t/for-sale-body-parts-for-2001-e825-4-seater/28323)
**Author:** [@Pythan](https://community.electricforum.com/u/Pythan)\ **Replies:** 4\ **Last updated:** [September 16, 2026, 1:08am UTC](https://community.electricforum.com/t/for-sale-body-parts-for-2001-e825-4-seater/28323 "2026-09-16T01:08:42Z")
I stripped off all the body part part. Some in good shape some in need of repair. Golf bag holder (in good shape) included. I even have the entire top (in good shape) with the sun roof and windshield all in one piece. … --- ## [2002 Gem car randomly lost power while driving](https://community.electricforum.com/t/2002-gem-car-randomly-lost-power-while-driving/30660)
**Author:** [@Moorenycc](https://community.electricforum.com/u/Moorenycc)\ **Replies:** 3\ **Last updated:** [September 15, 2026, 12:53am UTC](https://community.electricforum.com/t/2002-gem-car-randomly-lost-power-while-driving/30660 "2026-09-15T00:53:12Z")
Hello all, My 2002 gem car has been doing great up until this afternoon. While traveling about 20mph, the Gem car e825 spontaneously died with no power to dash. There is no change in the dash with key on or off. However… --- ## [Magic Magnet](https://community.electricforum.com/t/magic-magnet/21833)
**Author:** [@Jcbellis](https://community.electricforum.com/u/Jcbellis)\ **Replies:** 103\ **Last updated:** [September 14, 2026, 11:03am UTC](https://community.electricforum.com/t/magic-magnet/21833 "2026-09-14T11:03:31Z")
Hi Dave, I just purchased a 2006 e2 and I have a problem with the speed. The speedometer shows the top speed at 25 but GPS shows the speed is 19 MPH. Does you MM give me a little higher speed without changing out anyth… --- ## [2018 Gem e6 Charger Issues - HELP!](https://community.electricforum.com/t/2018-gem-e6-charger-issues-help/30545)
**Author:** [@Dalydog](https://community.electricforum.com/u/Dalydog)\ **Replies:** 45\ **Last updated:** [September 12, 2026, 3:41pm UTC](https://community.electricforum.com/t/2018-gem-e6-charger-issues-help/30545 "2026-09-12T15:41:43Z")
Help!! I’ve just replaced ALL batteries in my car and am STILL getting a VEH FAULT code of 520508-7. Car drives and runs as normal but the charger isn’t cycling on. What am I missing?! --- ## [NEV shocks adjustment](https://community.electricforum.com/t/nev-shocks-adjustment/30652)
**Author:** [@Tomdaygem](https://community.electricforum.com/u/Tomdaygem)\ **Replies:** 2\ **Last updated:** [September 10, 2026, 11:19am UTC](https://community.electricforum.com/t/nev-shocks-adjustment/30652 "2026-09-10T11:19:13Z")
Continuing the discussion from Changing rear shocks in a 2002 gem: I recently replaced the shocks in my 2002 Gem with the NEV replacement shocks.They enclose a spanner type wrench adjustment for the 5 settings on the s… --- ## [Did you buy your GEM online, at a dealership or second hand?](https://community.electricforum.com/t/did-you-buy-your-gem-online-at-a-dealership-or-second-hand/5388)
**Author:** [@EvForum](https://community.electricforum.com/u/EvForum)\ **Replies:** 12\ **Last updated:** [September 7, 2026, 2:27pm UTC](https://community.electricforum.com/t/did-you-buy-your-gem-online-at-a-dealership-or-second-hand/5388 "2026-09-07T14:27:58Z")
There are many GEM owners on the forum - did you buy your GEM online, at a dealership or second hand? --- ## [2016+ Gem controller swap](https://community.electricforum.com/t/2016-gem-controller-swap/21821)
**Author:** [@Inwo](https://community.electricforum.com/u/Inwo)\ **Replies:** 78\ **Last updated:** [September 4, 2026, 7:45pm UTC](https://community.electricforum.com/t/2016-gem-controller-swap/21821 "2026-09-04T19:45:20Z")
To help design a harness for members, I rhinogated my 2018 EL-hd Took out the oem controller and plugged in a 48v S6 controller that I had cloned to a 2012 Ranger EV. Everything else is stock. 48v lead, 17:1 gears, cha… --- ## [Hey Wanna get a laugh](https://community.electricforum.com/t/hey-wanna-get-a-laugh/30636)
**Author:** [@grantwest](https://community.electricforum.com/u/grantwest)\ **Replies:** 5\ **Last updated:** [September 1, 2026, 4:51pm UTC](https://community.electricforum.com/t/hey-wanna-get-a-laugh/30636 "2026-09-01T16:51:12Z")
I’m trying to sell my car on Facebook marketplace and someone contacted me saying this is my competition. The potential buyer pointed me to this guy selling a Gem that looks like Myn but for less?? HUMMMM. It looks like … --- ## [PSDM help needed](https://community.electricforum.com/t/psdm-help-needed/30620)
**Author:** [@CARLSBADGEM](https://community.electricforum.com/u/CARLSBADGEM)\ **Replies:** 18\ **Last updated:** [August 31, 2026, 2:14pm UTC](https://community.electricforum.com/t/psdm-help-needed/30620 "2026-08-31T14:14:07Z")
Need help diagnosing a PSDM. I was driving and it shut off, the dash has everything lit up, all the letters and numbers are 8, it’s very dim, no way to see any codes. I did notice an electrical burning smell. When I got … --- ## [Changing rear shocks in a 2002 gem](https://community.electricforum.com/t/changing-rear-shocks-in-a-2002-gem/30634)
**Author:** [@Tomdaygem](https://community.electricforum.com/u/Tomdaygem)\ **Replies:** 4\ **Last updated:** [August 31, 2026, 10:10am UTC](https://community.electricforum.com/t/changing-rear-shocks-in-a-2002-gem/30634 "2026-08-31T10:10:34Z")
I am changing the shocks in my 2002 gem. I am using NEV shocks. Front ones went in great but the rear ones seem Under a lot of pressure.i listen the top only but the shock still seems to be under loaded and doesn’t feel … --- ## [GEM Accelerator Pedal Assembly Needed (also RV)](https://community.electricforum.com/t/gem-accelerator-pedal-assembly-needed-also-rv/12504)
**Author:** [@Arlene](https://community.electricforum.com/u/Arlene)\ **Replies:** 81\ **Last updated:** [August 30, 2026, 3:58pm UTC](https://community.electricforum.com/t/gem-accelerator-pedal-assembly-needed-also-rv/12504 "2026-08-30T15:58:24Z")
Polaris Part #2010400 Accelerator Pedal Assembly Needed. Not available from Polaris. Any suggestions for an alternate source? --- ## [Pedal or throttle sensor](https://community.electricforum.com/t/pedal-or-throttle-sensor/28825)
**Author:** [@hamm107](https://community.electricforum.com/u/hamm107)\ **Replies:** 25\ **Last updated:** [August 30, 2026, 3:57pm UTC](https://community.electricforum.com/t/pedal-or-throttle-sensor/28825 "2026-08-30T15:57:27Z")
I’ve read a lot of posts on this forum about pedals. Plenty of people clean the older style welders pedal to get them working again. It seems like there is maybe 1 or 2 newer styles? I have a 2011 with a pedal assembl… --- ## [Looking for battery advice](https://community.electricforum.com/t/looking-for-battery-advice/30632)
**Author:** [@Pythan](https://community.electricforum.com/u/Pythan)\ **Replies:** 4\ **Last updated:** [August 28, 2026, 8:22pm UTC](https://community.electricforum.com/t/looking-for-battery-advice/30632 "2026-08-28T20:22:57Z")
Just bought a 2002 e4 to make another parade float. I was considering Li batteries but not liking the cost. I will only use the thing for a few hours each parade and only 2-5 parades a year. I don’t need to go 20 mile… --- ## [Need help in San Diego - 05 Gem lithium problems](https://community.electricforum.com/t/need-help-in-san-diego-05-gem-lithium-problems/30627)
**Author:** [@Pornelas](https://community.electricforum.com/u/Pornelas)\ **Replies:** 1\ **Last updated:** [August 28, 2026, 1:42am UTC](https://community.electricforum.com/t/need-help-in-san-diego-05-gem-lithium-problems/30627 "2026-08-28T01:42:16Z")
I have hit the limit on my diagnostic capabilities and am hoping someone local can help me pinpoint my problem. The cart had sat for a bit and I noticed it wasn’t charging, that’s what started this journey. I have a Sam… --- ## [Burnt-out ANT BMS 2016 High voltage GEM](https://community.electricforum.com/t/burnt-out-ant-bms-2016-high-voltage-gem/30463)
**Author:** [@smspring](https://community.electricforum.com/u/smspring)\ **Replies:** 18\ **Last updated:** [August 24, 2026, 2:17am UTC](https://community.electricforum.com/t/burnt-out-ant-bms-2016-high-voltage-gem/30463 "2026-08-24T02:17:10Z")
I think I burnt out my ANT BMS. It kind of smells like a burnt plastic and beeps nonstop until I unplug it. BMS app lists CHGMosErr. This is the 2016 E4 that @Erniea15 converted to high voltage with a @Inwo tesla pack. … --- ## [GEM battery replacement type question](https://community.electricforum.com/t/gem-battery-replacement-type-question/1463)
**Author:** [@simonc](https://community.electricforum.com/u/simonc)\ **Replies:** 45\ **Last updated:** [August 19, 2026, 4:30pm UTC](https://community.electricforum.com/t/gem-battery-replacement-type-question/1463 "2026-08-19T16:30:38Z")
Hi! I'm new to the forum. I already did a search but didn't find any posts that specifically answered my question. QUESTION: What non-OEM batteries will work in my 2002 GEM two seater golf cart? Will Optima gel batteri… --- ## [Make a 2016+ GEM go faster - What are my options? (7/2022)](https://community.electricforum.com/t/make-a-2016-gem-go-faster-what-are-my-options-7-2022/24616)
**Author:** [@Erniea15](https://community.electricforum.com/u/Erniea15)\ **Replies:** 22\ **Last updated:** [August 19, 2026, 2:58pm UTC](https://community.electricforum.com/t/make-a-2016-gem-go-faster-what-are-my-options-7-2022/24616 "2026-08-19T14:58:02Z")
Thought I’d start an updated thread around 2016+ GEMs and how to get better performance out of them. I did a high voltage conversion over a year ago and know we’ve learned a ton about these cars since then; batteries ha… --- ## [Understanding lithium for Gems](https://community.electricforum.com/t/understanding-lithium-for-gems/19477)
**Author:** [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Replies:** 129\ **Last updated:** [August 14, 2026, 9:29pm UTC](https://community.electricforum.com/t/understanding-lithium-for-gems/19477 "2026-08-14T21:29:45Z")
I know many people are looking to do lithium conversions on Gems but maybe confused about how it all works . Lets try and explain a few things . There are many different types of lithium battery chemistries . They all h… --- ## [2007 E2 -66 error code](https://community.electricforum.com/t/2007-e2-66-error-code/30604)
**Author:** [@usdharris](https://community.electricforum.com/u/usdharris)\ **Replies:** 4\ **Last updated:** [August 14, 2026, 5:46pm UTC](https://community.electricforum.com/t/2007-e2-66-error-code/30604 "2026-08-14T17:46:24Z")
My e2 has suddenly started throwing the -66 code. Sometimes after a mains disconnect and restart it might work. The last time I made it 2 blocks from home. It ran until I came to the stop sign. Applied the brakes and boo… --- ## [Charging inlet cord replacement 2008 GEM4](https://community.electricforum.com/t/charging-inlet-cord-replacement-2008-gem4/28746)
**Author:** [@dcoleone](https://community.electricforum.com/u/dcoleone)\ **Replies:** 20\ **Last updated:** [August 9, 2026, 2:06am UTC](https://community.electricforum.com/t/charging-inlet-cord-replacement-2008-gem4/28746 "2026-08-09T02:06:10Z")
I need a new cord part# 0306-01135 GEM4 2008. It is the cord that goes to the external outlet from the charger. The ground prong broke off. It still charges without the ground prong but I am afraid I am damaging the char… --- ## [2000 E825 2 seater wont move!](https://community.electricforum.com/t/2000-e825-2-seater-wont-move/30561)
**Author:** [@Fickle\_Hobbyist](https://community.electricforum.com/u/Fickle_Hobbyist)\ **Replies:** 46\ **Last updated:** [August 8, 2026, 1:43am UTC](https://community.electricforum.com/t/2000-e825-2-seater-wont-move/30561 "2026-08-08T01:43:48Z")
Hello all and TIA for any help or advice. I bought a 2000 E825 2 seater from a gal and she claimed it only needed new batteries as it had been sitting in her garage for the last two years not being used. I put new lead… --- ## [Air conditioning for an E2 2019](https://community.electricforum.com/t/air-conditioning-for-an-e2-2019/30586)
**Author:** [@MrAir1](https://community.electricforum.com/u/MrAir1)\ **Replies:** 4\ **Last updated:** [August 6, 2026, 7:13pm UTC](https://community.electricforum.com/t/air-conditioning-for-an-e2-2019/30586 "2026-08-06T19:13:26Z")
This 5th prototype is a working dash a/c system for a GEM . I moved the charger to the rear to provide room in the front for the condensing coil. I used the split systems I get from China. The problem we had was tryin… --- ## [Anyone have a service manual for 2016+ Gem?](https://community.electricforum.com/t/anyone-have-a-service-manual-for-2016-gem/23667)
**Author:** [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Replies:** 14\ **Last updated:** [August 4, 2026, 4:43pm UTC](https://community.electricforum.com/t/anyone-have-a-service-manual-for-2016-gem/23667 "2026-08-04T16:43:14Z")
Looking for a service manual, prefer 2018 but will take any year 2016+. Thanks [Next page](https://community.electricforum.com/c/gem-forum/101.md?page=1)