M30 running on 3 Cylinders !!! help
I don't know what is it and where!! ... the car starts OK .. nothing wrong ... just when I step on the accelerator reaching over 2000 RPM the engine stops the cylinders 2, 4 and 6 -that's if I'm counting cylinder 1 from the radiator - and it wont work again until I stop the engine and start it again ... this problem started today on the high way. before that there was no problem.
I would like to add a note here. that my alternator doesn't start charging until I rev the engine to above 3000 RPM. I feel that the alternator is noisy or triggering something ... but what is it?! I'm going to try a different DME I just feel that the injectors seas the get the signal.
Any idea guys ?! I'm puzzled !!
Smell of gas would suggest spark problems...
...not lack of fuel problems.
How old are your plug wires? I'm now sort of wondering if you don't have shorts in the plug wires. That can cause intermittant problems.
Quote:
Originally Posted by grave77
well ... when it starts vibrating ( running into 3 cyl mode ) I unplugged the spark plugs HT wire one by one .. the ones were not affected was 2,4,6 that tells that there is no gas. also ... the way the engine behaved when I throttled it took a pattern its like it cuts off then on again and it doesn't sound like a choke stall or something like that.
if it was the sensor that triggers the sequence. I think it shouldn't start correctly then go off sequence right?
I just can't seem to find a logical explanation yet !! but the it behaves has a pattern !!
**EDIT: I just came back from a test, I replaced the DME with an old one .. still got the same problem, I disconnected the trigger sensor ( right plug next to the crank sensor ) and the engine behaved much better, not smooth but seems that the DME used the prediction method. but didn't run in 3cyl mode.
do you think that was it? I reconnected it while engine was running but nothing changed. also gas smell was so obvious and few explosions happened in the exhaust afterwords.