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My 89' 240 has no problem starting in the morning. Starts and idles smooth. and i could drive it all day provided i dont turn it off. Because if i let it warm up and drive for a while the turn it off there is a problem when i start it up again. When i restart it seens fine for 3 sec. then it will idle really low and the entire engine will shake. i cant drive it untill this problem goes away, after 2 or three minutes. But then there are little fluctuations in the idle speed. This problem gets worse the more i turn the car on and off. It got a little better when i took the fuse out and then started it but the idle was still rough.
I tried the following:
1. Cleaned the thortle body,
2. Cleaned the idle air valve,
3. Change the air mass meter
4. Replaced the spark pulgs, wires, rotor cap
5. Cleaned fuel injectors
6. new flame traps
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