Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: DrAndyB on 18 July 2015, 13:24:03

Title: Fault code P1781 & P1740 ??? On 2.2 FL Petrol Auto ???
Post by: DrAndyB on 18 July 2015, 13:24:03

Got these from the Pending Fault codes.

Cant seemed to find them on the list ?

Car starts a great now with clean throttle body  :y

I have reset the codes and there were no other codes logged.

Not sure what they are.

Title: Re: Fault code P1781 & P1740 ??? On 2.2 FL Petrol Auto ???
Post by: SIR Philbutt on 18 July 2015, 16:44:38

From my Autel
P1781 - ECM actual torque signal - malfunction detected
P1740 - AT torque control. signal malfunction

Looks like something to do with gearbox, Pending codes tend to clear with ign off/on

I'd Wait to see if they come back then do something, cam sensor is used by AT ecu

Title: Re: Fault code P1781 & P1740 ??? On 2.2 FL Petrol Auto ???
Post by: Jimbob on 18 July 2015, 21:13:51

Memory tells me the Cam sensor on a 2.2 can give bizarre false autobox codes.

Title: Re: Fault code P1781 & P1740 ??? On 2.2 FL Petrol Auto ???
Post by: DrAndyB on 19 July 2015, 00:09:42

Thanks for advice and hints.

Have reset all and oil now changed to propper vx 10W/40 Semi.

Old black stuff which i drained seemed very "thin" but they had put 5W 30 full synth in !!!

I am happy now she has genuine GM oil and cleaning throttle body as per OOF guide has cured idle gremlin a treat  :y

Will check for codes in morning as all reset and gave he a run today.  Fingers crossed.