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Check Engine/ 2-4-1 Computer Code / EGR. Where to start? 900 1995

posted by  RobertT on  Sun Feb 15 06:03 CST 2004
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I just knew it couldn't be something simple! Jerry, thank you for all the info. Several of these things I've ruled out as the Vacuum holds good on the sensor from the vacuum line. I loosened and reconnected all the electrical connections yesterday to make sure everything is making good contact. When the check engine light is ON, it's very hard to start when cold and runs really rough.

After clearing the computer again yesterday, it has been doing very well...although I've only been about 10 miles of city driving. The mechanic switched all the old EGR system onto this engine and the check engine light was NOT on before. So, I'm hoping it's a connection or such as that EGR valve is a NIGHTMARE to get out of there. I'm assuming the intake manifold has to come off as I can't even get my hand to the entire unit.

Thank you again for the information. I probably need to buy a service manual for this car and keep it myself. I can just see my 75 year old mother out under the hood diagnosing the computer codes!






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