Community Fixes
Common problems grouped from confirmed-fix threads on SupraForums — 572 issues across MKIII threads
Systems
All Issues572Engine162Electrical143Other60Cooling42Body / Interior39Suspension35Transmission28Turbo20Fuel System15Brakes15Exhaust13Sort by:Most DiscussedSystem
Electrical22 threads
suspected ignition system failure
Ignition Boxes...Which is best???1JZ Swap Complete, Fired up first time Today (Vid)Megasquirt II / EDIS 6 users please help!+ 19 more threads
Electrical22 threads
reading diagnostic trouble codes
3rd Set Of Knock Sensors And Ecu Still Code 52Code 52: what to do when everything tests OK?No diagnostic box 88 Non turbo+ 19 more threads
Electrical21 threads
constant low voltage power to accessory circuits
VPC + S-AFC install problem1jz PROBLEMS!!!!!Charging system @ 13.0v :(+ 18 more threads
Electrical20 threads
headlights pointing too high
LED headlights shutting off/going dimHeadlight control “switch” fits?Mk3 headlights+ 17 more threads
Electrical20 threads
check engine light illuminated
This means im ok right?Engine RPM dropped to zero with check engine and battery light on, what happened?New Memeber w/ BOV question+ 17 more threads
Electrical19 threads
electrical grounding issue
Power ground upgrades!I WILL PAY $10+ for the correct diagnosis of my electrical issue. VIDEO/PICStried everything i know. need help+ 16 more threads
Electrical19 threads
wiring safc2 on ecu
Anyone wired an S-AFC to MKIII NATrying to get a speed signal from R154 to Stand alone.Newbie Needs N-Fo+ 16 more threads
Electrical18 threads
unknown air fuel ratio readings
anyone know where i can get a oem fuel sender unit?Back together: but no boost, bad vacuum leakfuel gauge on crack!+ 15 more threads
Electrical17 threads
no electrical indication or start
need help no power in car at allWierd Power ProblemEletrical gremlin+ 14 more threads
Electrical17 threads
wiper stops at upper position
how to remove rear wiper????Decent Wiper Arms???for all those people with hatch rattles....+ 14 more threads
Electrical17 threads
unknown electrical issue requiring fuse check
Really stupid question...but what is this?Code 5287 Foglight Problem+ 14 more threads
Electrical17 threads
fuel pump does not prime with ecu
gt35r 2jz-nat mk3 wont start. HELP!!!!no power to ecuOk, getting pist now..........+ 14 more threads
Electrical17 threads
doors unlocking when engine is shut off
Fucking AlarmWhat the ^&*^ is happening nowCar will not stay locked+ 14 more threads
Electrical16 threads
speedometer cable needs replacement
various little things are breaking -.-Speedometer Cable question....Dont know exactly what im missing to the speedo cable+ 13 more threads
Electrical16 threads
dome lights not working
chassis electrical... dome etc.Dome lights won't turn on.Fixed my dome and ring light not coming on when I open the door!+ 13 more threads
Electrical14 threads
passenger side window will not roll up
window won't roll upwindow issueClear coat on windows+ 11 more threads
Electrical14 threads
considering electric fan conversion
7mCooling....I.J.5 fusses and electric fanElectric fans conversion in Mark3 supra+ 11 more threads
Electrical14 threads
power window switch failure
Passenger Window stoped workingElectric window problemi bought one rigged a** supra+ 11 more threads
Electrical13 threads
requires constant 12v ground connections
1JZ Test firestumpedWhere does the battery ground wire attach on the engine?+ 10 more threads
Electrical13 threads
main electrical power supply failure
Auto Tranny: Car revs, but doesn't move?my wiring issue....help quick- freezing no gas+ 10 more threads