1997 C230 Mercedes cranks, starts and stalls
Was sitting at a stop sign and it stuttered and shut off and now it will run for about 2 seconds and shut down, If I spray starting fluid in it will run, thing is as long as it is running with the starting fluid you can rev the engine with the throttle so MAF is probably good. It's a four cylinder. Fuel pressure 55psi@ rail, 1 liter volume in 35 seconds. Good spark, compression 220+- (I think 218 is the max) on all cylinders, a little high but probably due to carbon build up. Injectors pulse strong and steady. All fuses and relays check good. As far as I can tell all sensors, are within range with the exception of the Coolant temp it ohms out around 2800 and spec is 3100@68 Degrees. I have another CTS on order but would that cause this condition. I would have already checked the timing but it runs so well, when it runs, I can't believe it is out of time. Not completely sure its not the MAF, but the Intake air sensor in the MAF is right on spec. I have spent days going over the wiring harness and as far as I can tell there aren't any shorts,,
Fuel line must be clogged up or the fuel pump should be replaced cange fuel filter.
Thanks for your response,, however you didn't read the results of the fuel test...as per Alldata, MoD, and the actual manual.. 1 liter of fuel at the rail in 35 seconds,,and 55 PSI while starting,,,its not a fuel problem. and I'm not into throwing parts at it..
- check the fuel pressure regulator (on injection system @ front top of motor) it has a small rubber vacuum line on it, with the engine running; gently pull off the vacuum hose and hold it about 1/4 inch away from nipple. If you see petrol coming from the nipple on the regulator into the vacuum hose - there's your problem! It has a diaphragm inside it that can wear through causing it to leak fuel into the vacuum system. Replace the fuel pressure regulator and it will run like new!
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