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I need some help w/ troubleshooting a low idle when car is started 200 1989

uid 25253's pic
posted by  Cabbie2169 on  Fri Jul 15 15:25 CST 2005
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I've complained in earlier posts about how the '89 240 automatic will "limp-to-life" versus revving up nice and strong when I start the car. When the car is started, the engine cranks right up quickly, but it doesn't idle high enough. I have a 561 ECU that is supposedly "remanufactured."

I'm going to try and tackle this by first disassembling the Idle Air Control Valve and cleaning it out. I also want to clean the throttle body. Do I need to take the throttle body apart in order to clean it??

Also, I've read that the O2 sensor could cause this?? Crank position sensor??

I need some help with going from simple to complex troubleshooting.

Thanks for the help.
Cabbie2169






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