Cranks but wont start

[Gordon1987]

I have spark and fuel.... im thinking its something electrical.... what works with the ignition or starting circuit?

[jlevie]

It would be a help to know what car this is.

Spark when cranking means that the DME is running and has timing data, which also means that the fuel pump will be enabled. But a weak pump or bad FPR can result in invalid rail pressure. Use a gauge to check the rail pressure. You also need to use a noid light to see if the injectors ae firing.

If spark and fuel are being presented to the cylinders, a large intake leak becomes the next likely suspect.

[Gordon1987]

1987 325.. brand new regulator, have good pressure...

[jlevie]

1987 325.. brand new regulator, have good pressure...

"good pressure" means very little. "correct pressure" would mean a lot and that means actually measuring rail pressure.

Since this is a ETA, a bad time-temperature switch or cold start valve could be part of the problem.

[Gordon1987]

well excuse me GENIUS its has correct pressure.. since good pressure means very little how much psi is that then?

[dandrewg]

well excuse me GENIUS its has correct pressure.. since good pressure means very little how much psi is that then?

If you've done much reading around here at all you would know that jlevie is knowledgable about E30's to the point where "GENIUS" isn't that far off.

Ask a question with the correct level of detail and you will get helpful answers. And try the search button. There are tons of threads regarding a no start condition.

[jlevie]

Correct pressure on an ETA would be 2.5bar (36.75psi). A weak pump, clogged filter, or an obstructed fuel return line will yield invalid rail pressure even with a perfectly good FPR.

[Marcos]

well excuse me GENIUS its has correct pressure.. since good pressure means very little how much psi is that then?

Wow dude, great way to make friends. Jim wasn't even being sarcastic, just to the point. And he even responded after the fact with good information.

Maybe an apology is in order, your choice of course but you won't be well liked here if you mouth off to guys like him...

[Marcos]

"Thank you. Now was that so hard to answer" - OP
"my e30 will always look better.. and faster.. " - Your car doesn't run
"...well excuse me GENIUS..." hmm

"Whenever I full throttle the car is hesitates as it goes up... Fuel filter, Ignition wires, Spark plugs, and Ignition Coil are all brand new." This precede the no-start condition?

"Head gasket brand new and head has been torqued properly but as I test drove it white smoke correction extreme white smoke starts pouring out exhaust every 5 min .
HELP ! " - This precede the hesitation problem?

"...But I did reuse the head bolts with new gasket " This before you even started it?


I see two distinct patterns going on here, the car one can be fixed...

[JAVIe30es]

If you've done much reading around here at all you would know that jlevie is knowledgable about E30's to the point where "GENIUS" isn't that far off.

Ask a question with the correct level of detail and you will get helpful answers. And try the search button. There are tons of threads regarding a no start condition.

...JAVIE30ES.. I TOTALLY AGREE .... MR JLEVIE IS THE and I quote"THE SHIT"...

[BergerNJ]

jlevie is the man.....this guy is a tard for giving lip to someone full of so much information....

besides what jlevie posted in his first response is something I've seen him post at least 10 times a month to the point that I now know it....

just search the exact title you made of this thread and appreciate the search feature.....it works wonders