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Hesitation off of idle/ Engine dies 200

My 87 did the same thing when I got it, and after replacing a lot of the same things, it's improved now, but still did stall once and still occasionally dies in reverse. It came with a shiny new AMM so I know that's not it.
I also saw one at the shop recently, drove in and wouldn't start later in the day. The sad fact with these cars is, the wiring harnesses are going bad. Things are unpredictably shorting to each other, and this can cause all manner of fuel injection and ignition problems. I haven't replaced mine though I have a "known good" 87 harness in a box... I will only do it if it really desperately needs it. It is a big job... and it goes through the intake manifold which is a real *****. You can look for indications of harness failure at the firewall (big gray connector), along the intake, especially under it going to the sensors, and the loop going under the front pulley (the first place to go, but the exposed wires are readily repairable.)
My usual list of suspects includes all the items already replaced so... hopefully the problem can be pinpointed more closely.
Rob Bareiss, New London CT






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