The Irish Mitsubishi FTO Owners Club

by **steelroe** » Fri Dec 11, 2009 1:09 am

Took in a 98 Vr yesterday that was bringing on the engine fault light, Light would come on after a while idling, and would remain on until the accelerator was floored.
This FTO failed the NCT on extremely high emissions (tester told the owner it was the worst he had seen)

Diagnostic unit found code 41 stored in the ECU. Code 41 refers to INjector circuit problems. After checking all 6 injector circuits back to the ECU and no problems found. I then decided to check the TPS voltage to the ecu. It should be approx 1v at idle and 5 at WOT.
Multimeter was reading 5.5v at idle and did not change as the throttle was opened.

Removed a sensor from another FTO installed, it was also faulty. After fitting a third sensor and adjusting at idle the car now operates perfectly.
So for future ref code 41 can be caused by faulty TPS, this is not referenced to in the manuals.

This fault was causing the very high emissions, die to ecu over fueing at idle.

The sensor fitted to the 98 model is slightly diff to the 95-96 models but both work perfectly when swapped arround.

Website · by **Muad_dib77** » Fri Dec 11, 2009 9:24 am

* moved to kbase * Thanks Rory!

by CJ » Fri Dec 11, 2009 10:33 am

Good post Rory, the old TPS again, eh?

steelroe wrote:The sensor fitted to the 98 model is slightly diff to the 95-96 models but both work perfectly when swapped arround.

I concur - currently running a 95 TPS on a 99 GX.

CJ

by **johntony** » Fri Nov 19, 2010 8:05 pm

could this also increase fuel consuption trying to prolem solve why my car is eating juice (300-350 km per fill) put a meter on it the last wire as you look at it on the left hand side was reading 6-6 volts did not move when reving the car and stayed at it at idel should i get a new one of camskill?