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High NOx and Volvo/Chrysler Ignition 200 1987

well, I did a little looking this morning and there's a definite exhaust leak where the front pipe attaches to the manifold (right where the O2 sensor is located) so that would definitely be sucking in air and giving a false O2 sensor reading. I guess after fixing that I should also plug the vacuum to the ICU?

thanks again.

k.s.






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