Intermittent No Start
#1
Intermittent No Start
Just picked up my 1991 240 Wagon yesterday. We were having trouble getting it start. The seller told me he would have intermittent issues with it. At first the fuel pumps were not coming on. We bypassed the relay and they both worked. Plugged the relay back on and they both functioned. Still no start. We pulled the plug wire closest to the front to test spark. Spark was good. Plugged the wire back in. The car started right up and has every time since. The only code I'm getting from socket 6 is 144- Load from ecu missing. The cap and rotor are new and so is the coil.
Any ideas for what would cause this, and why pulling that spark plug wire would make a difference? Thanks for any help, this 240 is a whole new beast!
Any ideas for what would cause this, and why pulling that spark plug wire would make a difference? Thanks for any help, this 240 is a whole new beast!
#2
What condition is your crank position sensor? If the insulation on the wire that runs from the sensor is cracked and flaking off then it may be the culprit.
In your post it wasn't clear whether it only would run when bypassing the fuel pump relay or not. Before replacing other components make sure that the fuel pumps are running properly without bypassing the relay. If starting is intermittent then the CPS is the next thing I'd check.
In your post it wasn't clear whether it only would run when bypassing the fuel pump relay or not. Before replacing other components make sure that the fuel pumps are running properly without bypassing the relay. If starting is intermittent then the CPS is the next thing I'd check.
#3
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