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12-15-2009, 11:52 PM | #1 | |
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Join Date: Dec 2009
Location: allentown, Pennsylvania
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p0340 error code but no driving problems
My car won't pass inspection because it pops up a P0340 code (camshaft position sensor circuit error). I replaced the sensor. Still there. Someone suggested that the timing belt might be off by a tooth. I checked it and this doesn't seem to be the issue. What are ALL the possible causes so I can try them all out.
The car drives fine. Well.. on rare occasion it stalls on the highway, but because it's a manual transmission, the momentum just kicks the engine over so it becomes just a little hiccup. I had a mechanic try to trace the error code and he couldn't find the problem, but did notice that my fuel pressure is inconsistent. Could a bad fuel pressure regulator cause the engine to work normally 99% of the time but consistently cause a P0340 code on every single start? Could something else cause both problems? All ideas, no matter how bizarre are welcome. Thanks. -Spencer |
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12-16-2009, 05:52 AM | #2 | |
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Re: p0340 error code but no driving problems
I know this is an expensive proposition but it's times like this when you might try going to the dealer.
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12-17-2009, 11:14 AM | #3 | |
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Re: p0340 error code but no driving problems
You didnt say what year your Escort was or what type engine it had. On my 2nd gen. LX Escorts, I didnt think its possible to change the cam position sensor without taking the intake manifold loose first.
Anyway: Im cheap. I would first try disconnecting and reconnecting the wire that goes to the cam position sensor, & cleaning the connector with carb cleaner spray. Then I would try disconnecting/reconnecting the big connectors to the ECC (with battery disconnected). My next step would be to get a replacement connector for the cam position sensor - I checked at www.rockauto.com. I put in ford, 94, escort LX, then clicked on "electrical connector", and it showed a "Camshaft Position Sensor Connector" for $19. A similar connector is shown for the 3rd gen. Escorts. |
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12-17-2009, 06:36 PM | #4 | |
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Re: p0340 error code but no driving problems
Yep, year and engine are very important!
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