Question about 1996 Chevrolet Cavalier

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1996 chevy cavalier with a 2.2l engine and you have been getting lean system readings from the obd fuel pump is fine new fuel filter and fuel lines seem fine no leaks what could be the problem?

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  • Bruce Bateman Jul 17, 2009

    i have replaced the upstream o2 sensor already. is there any other reasons for this problem?

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  • Master
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Check the condition of the O2 sensors in the exhaust system. If the car has a lot of miles, those sensors become worn and don't sense proper fuel mixture.

Posted on Jul 17, 2009

  • drallim Jul 27, 2009

    You might look for a vacuum leak. Check the EGR valve for being stuck open. If this a throttle body injector, then maybe the injector is dirty or sticking. Check the throttle position sensor. Measure fuel pressure. Computer should show sensor faults if any are bad.

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1996 chevy cavalier and 2001 chevy cavalier fuel pump interchageable


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How do I change the fuel filter on 1996 chevy cavalier?


The filter should be in the fuel line under the car between the gas tank and the engine.
On some models it is in the engine compartment, and on others it is in front of the gas tank.
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I have a 1996 chevy cavalier LS 2.4 liter. a few years ago someone poured sugar in the gas tank but the car still ran ok. about a year after that the fuel pump went out. I removed the gas tank and had...


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2002 Isuzu Wizard V6 Petrol engine. Went to start it and it turned over and went to fire up but then just cut out. Tried it again and it started fine?


Hi.

A failed start can happen for a number of reasons. If this happened just once, it should not be reason for concern.

If the problem happens again, the first test you can do to locate the problem is an OBDII code scanning.

The scan can be done at any local garage. If you purchase a scanner like the ones linked below you can read the codes by yourself.

OBD-II-Scan/dp/B001LHVOVK

OBD2-Trouble-Code-Reader-Scanner

The connector is located under the dash.

Once you have the codes you can get back to us for an explanation. Here you can also find basic info on OBD codes.

If the problem happens regularly, then other test that must be done is checking fuel and vacuum pressure using a Vacuum and Fuel Pump Tester. This is a gauge that must be placed in between the lines to read pressure.
By reading fuel pressure it is possible to spot problems caused by blockage, fuel pump malfunction and problems with fuel pump aeration.
By reading pressure on vacuum lines whilst heating the lines with an hand torch (this must be done by a mechanic), you can find vacuum leaks.

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If you get the problem again, read codes and replace spark plugs, air filter and fuel filter.

Regards.

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1996 chevy cavalier problem


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1996 chevy cavalier wont fire


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