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Check engine light on. Yikes! S90-V90 1997

Is this the only code shown? I would reset it and see how long it takes for it to come back.

The only suspect that I can think of is a poor connection at a connector somewhere or an ignition coil that is starting to go. If a coil gets worse, it should set a code associated with a particular cylinder 301 - 306.

When my intake manifold gasket went, it set this code along with P0171 and I had a definite detectable miss when the engine was idling.
--
'96 965, 16' wheels, 18mm rear bar & 204HP cams at 122K. Had '85 745 Turbo Diesel for 200K.






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