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Hesitation across entire powerband 900

posted by  The Iron Chef on  Wed Jul 17 13:40 CST 2013
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last visit: Thu Sep 25 16:11 CST 2014
[RELATED]

1994 945 Regina b230f 203k

After replacing timing belt, balancer, seals and gaskets and the INTAKE MANIFOLD gasket my car suffers from hesitation across entire powerband. Also a hunting idle condition. I also replaced the Cap and Rotor. I have thoroughly cleaned the throttle body and the Idle air valve. I swapped out the MAP sensor but that made no difference. how far out can the timing belt be for it to cause hesitation. ( I think I have it right on). I have searched the forum for hesitation issues but have not found definitive answers.

OBD shows two codes.

Socket - 2: 2,2,3 Signal missing to/from idle valve IAC Idle air control valve

Socket - 6: 3,3,4 Throttle Position Switch (TPS) in idle position (REX 1 only) Faulty wiring or TPS; TPS adjusted incorrectly

I'm surprised to think that these codes are co-incedental to the work i did.

Help.
thanks in advance
-Keith






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