alright guys...well this isnt for a supra..i changed a friends alternator cuz we thought it was going to fix it...and i used voltmeter alt was bad...anyway...i changed it and its stilll like that... spedemeter going crazy...and mileage is going up by itself ..and lights are pulsing...and car hesitates sometimes when u are gassing it....and my problem is...this ALL happens ONLY when u press the gas...when u just start it up from the start it is fine...any input?..
Speedometer going crazy...car hesitating..
- Thread starter FlipSupra8
- Start date
Have you checked for codes?
Make sure the wires for the VSS are good and not chaffed anywhere and make sure all connections between the VSS and speedo are good.
I would also check and make sure you don't have an o2 sensor wire grounded somewhere.
One time one of my o2 sensor wires melted to the header and cause all kinds of crazy problems..alt wouldn't charge but was good, tachometer and speedo wouldn't work and I had a code for the ELD which is built into the engine bay fuse box. Found and fixed the melted o2 wire, reset the ECU and everything was good.
Make sure the wires for the VSS are good and not chaffed anywhere and make sure all connections between the VSS and speedo are good.
I would also check and make sure you don't have an o2 sensor wire grounded somewhere.
One time one of my o2 sensor wires melted to the header and cause all kinds of crazy problems..alt wouldn't charge but was good, tachometer and speedo wouldn't work and I had a code for the ELD which is built into the engine bay fuse box. Found and fixed the melted o2 wire, reset the ECU and everything was good.