Shane Cunningham Posted on Aug 13, 2009

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I have a '95 2.5 Millenia. the check engine light

I have a '95 2.5 Millenia. the check engine light stays on with P0134 O2 sensor, then P0173 fuel trim malf., then P1170 EGR/barometric sensor. All codes were cleared, then P1195 EGR/barometric sensor stayed on. The next day I went to another shop & got Code 17 engine speed signal. I replaced the ABS relay, but I still have Hard fault check engine light on. Any ideas?

Shane Cunningham Aug 13, 2009

It seems that many others have had a similar problem & after much research, it appears to have something to do with a vaccuum issue, losing pressure at different rates & sending the computer haywire. I hope this helps others.

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Anonymous

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Posted on Aug 13, 2009

Anonymous

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This is all due to a loose connection somewere. If your car had been worked on check all connector that are not plugged in tightly. Some newer cars even have a special lock lever to the connectors, and if not connected properly you would have all kinds of code poping up.

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