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View Full Version : Irratic Idle E34 525 I


TimR
03-04-2011, 12:47 PM
So, lets get the spankin over early, i was letting my grandson help with an oil change, a quart got away from him and covered the motor. I wiped up what i could, used the engine degreaser spray, lightly sprayed the degreaser off with the hose. then reving up issues!!!. Now i've allready opened all the clip connectors arround the throttle body to dry but none seemed wet, switched the MAF and it still idles fine, push the gas, revs but goes only 2-3 K and stops, liked it's dying and going back to idling fine. any help????
Meeve
03-04-2011, 01:33 PM
It idles fine? it only race a bit on startup?

m50 or m20 engine?
TimR
03-04-2011, 01:35 PM
Its a M50, when you try to rev it up it will go 2-3K, die, and return to a perfect idle. I just did the MAF swap cause i had an extra, Thanks
Meeve
03-04-2011, 01:44 PM
Maybe oils went into the sparkplugs hole and it missfire. I would check the plug, even if its not the problem some oil may have infiltrated there.

I dont see what can be the problem. Surely someone will chime in and help more than I do.
TimR
03-04-2011, 02:24 PM
Just did the Bentley fault code test, nothing at all, not even trying to clear faults?????

bump
TimR
03-06-2011, 01:42 PM
bump
WhoNew
03-06-2011, 02:02 PM
Try this.

Degrease again, spray off with hose, then spray everything that looks electrical with WD40. I assume the water from the hose may have gotten somewhere it shouldn't have, and the WD40 will displace the water.
TimR
03-06-2011, 02:27 PM
Thanks
WhoNew
03-06-2011, 03:00 PM
no problem. It's what wd40 was invented for. That and spraying on your fishing lures !!
TommyD420
03-07-2011, 11:39 AM
Oil is extremely detrimental to the ignition systems.

I would definitely check to see if oil got down the sparkplug tubes. Take the coils off to see. And since you're there pull the apart plugs and 'read' them. They are a good indicator of what is going on in your engine internally.
sfgearhead
03-07-2011, 03:08 PM
My plugs were sitting in 1-2 inches of oil when I bought it, and it still ran.

Did you leave a hose off - i.e. vacuum leak?
sfgearhead
03-07-2011, 03:08 PM
My plugs were sitting in 1-2 inches of oil when I bought it, and it still ran.

Did you leave a hose off - i.e. vacuum leak?