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Old Thu, Jul-05-2018, 10:42:13 PM   #34
Join Date: Jul 2010
Posts: 14
Reputation: 0 jcasaccio is on a distinguished road

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Default Re: P1188 P1189 - Long list of tests and repairs and no end in sight. Really need hel

Fuel pressure is 43-45 at idle with vacuum and 51 when vacuum line disconnected.

Downstream O2 voltage jumps around when I hit the gas. Still slightly rich at idle once hot. Bouncing from 0-4%.

There’s plenty of power, no lagging not running hot. But, I do think it’s bad cats at this point. Thoughts?

Maybe time to take it to a shop.... �� defeated

Last edited by jcasaccio; Thu, Jul-05-2018 at 11:37:13 PM. Reason: O2 voltage comment
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