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[Ilija]

Couple days ago I went to check LPG installation in my '95 Omega V6 (since I previously had to remove the engine because exhaust manifolds gave a lot of noise (and the bolt was snapped... so I really had to remove the engine or remove the heads to replace exhaust manifold gaskets))

The engine did not work well after the whole operation, and the LPG did not work at all. Turns out it was the faulty DIS that didn't work on channel for cylinders 1and4 (there the LPG computer took the RPM signal from the main ECU). Now engine works like new BUT

And now the problem: during the middle of LPG check-up the TC light came (and still is) ON. The main ECU was connected but out from the computer bay then, the cables from it were checked (with ignition turned off, then on) and at one moment TC light came on (before that it was working fine) turns out that I now have fault code:
97 Ignition/Injection cut-off - voltage high (Traction Control Signal). Only change except pulling the cables in computer bay is that the LPG service man connected LPG computer temporarily to pin 43 of main ECU (that supplies rev info to dashboard) to get the missing rev data that prohibited LPG from working.

I tried to delete this fault but no go.

Any Ideas? Main ECU was replaced - still the same. What are the pin for TC on main ECU? (seems 43 is on of them)

[rustym95]

did you clean all the connection plugs before you put them back on?

[Ilija]

Yes, TC is integrated into ABS computer?

[rustym95]

if it was all working before you fixed the broken bolt then I would think that there is a wire off some were or a plug socket unpluged, when you lifted up the engine did you take off all the wire at the back of the engine?.

[Ilija]

TC worked when the engine was installed - it worked up to middle of LPG inspection/testing. I'll try replacing ABS/TC computer (both are in the same unit?) is it on the right side down when I open the bonnet (Opel Omega)?

[Ilija]

Changed the ABS-TC computer - now TC works great with no error codes