Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Palmo on 27 January 2007, 14:19:21

Title: Throttle Position Sensor Query
Post by: Palmo on 27 January 2007, 14:19:21

Just a quick query - maybe someone will know the answer. I am having problems with a lumpy idle while slowly coasting along in my Omega (2.5TD) but NOT when stationary.

Anyway today I have gained access to a 'Snap-on Diagnostics Scanner - MT2500'. Firstly, no fault codes are logged and I can't see anything that jumps out as being obviously wrong except for one possible thing. The Throttle Position Sensor is measured in both a % and voltage. At idle this is reading as 13% and only goes up to a maximum of 87% with the accelerator pressed to the floor. Surely these figures should be 0% at idle (i.e. no throttle applied) and 100% with accelerator pedal pressed to the floor?

Does this indicate a faulty Throttle Position Sensor? Is this contained within the accelerator potentiometer fitted above the pedal?

Title: Re: Throttle Position Sensor Query
Post by: Omegatoy on 27 January 2007, 19:45:14

pm you buddy, but gist of it is the tps is set wrong!! basically the throttle position sensor needs zerooing, as you have a full 100percent there 13 and 87 makes 100 so it just needs realigning!!

Title: Re: Throttle Position Sensor Query
Post by: Dave-C on 27 January 2007, 20:47:58

Can this be zero'd with a multimeter easily, i.e. slacken / retighten in correct location?  

DC :-? :-? :-? :-? :-? :-?