20xe possible tps fault help...

[comptoncj]

Basically the car runs really rough on start up, will not start without a boot full of throttle and idles at about 1400rpm, fuel consumption about 15mpg running rich as f**k. I got the multimeter on some of the engine sensors as per auto data specs and i found the AFM was ok, it has had a new CTS, but when i checked the TPS it was reading 4.6volts constantly, the voltage didnt change when i revved it up. Shouldn't the TPS work like a dimmer switch ie 0.5 at idle and 5.0 at full throttle? If so this is the problem. if anyone could shed any light it would be appreciated :)

[auzzy-b]

I don't think it should be 4.6 constantly.. Is your ecu warning light not on? Because if the tps is Reading to high or to low voltage it should trigger it!

[comptoncj]

The ecu light was flashing MAF sensor lol, but when i unplugged the tps the car started normally and no codes lol. I think it was telling the ecu it was flat out all the time.

[auzzy-b]

Hmmmm strange lol! At least you now know it probably is the tps after all:)