Author Topic: New Car: BIG cold start problems (Read 27369 times)

jeff_b · « **Reply #90 on:** May 04, 2010, 08:57:31 AM »

This may be a stupid question, but did the stomp test reveal anything?

fiftytakedowns · « **Reply #91 on:** May 04, 2010, 11:40:24 PM »

DME 1 has a Mark D chip: says 1271
DME 2 bone stock says 1244 (or camshaft sensor)
recently replaced the camshaft sensor, to no imporvemnt.

fiftytakedowns · « **Reply #92 on:** May 04, 2010, 11:41:15 PM »

Quote from: locknload;91814

What about the wiring between the temp sensor and the DME, or wherever it goes? I'm just throwing this out, but perhaps it's the wiring? Should be pretty simple to trace the temp sensor wires (or look at a wiring diagram) and either make some jumpers or test them with your MM.

Also, have you checked/replaced the temp sensor on the top right side of the radiator?

replaced the temp switch with a 88� C much later for the Electric Fan.

jeff_b · « **Reply #93 on:** May 05, 2010, 09:09:15 AM »

I know it's a reach, and it would be a pretty good fuck up if it is true, but maybe the two temperature sensor plugs are switched, or the plug to the DME sender damaged? If the PO was under the intake deleting shit, I would inspect the electrical distribution raceway that is under the intake. Pop the cover off and look to make sure there are no broken wires, pushed connector pins, etc. Check inside the trough all the way to the sensor plug. It still sounds like temperature reporting to the DME to me......

fiftytakedowns · « **Reply #94 on:** May 05, 2010, 08:25:54 PM »

hmm Ill take a look, that could be it

jeff_b · « **Reply #95 on:** May 13, 2010, 09:26:29 AM »

Hey, Fiddy....have you resolved the problem?

fiftytakedowns · « **Reply #96 on:** May 19, 2010, 10:29:41 AM »

NOpe

Im going to start taking some mad pictures of everyhtign

jeff_b · « **Reply #97 on:** June 01, 2010, 09:28:51 AM »

Well, I gotta tell you, my wife's 1998 E36 M44 car has been running like shit for a few months. I replaced the ICV, PCV, water/air hoses to PCV, intake gaskets, flushed coolant, etc. It still ran like shit after it warmed up, lugging so bad at stoplights as if to stall. I put a bottle of Techron into the car Saturday with about 1/4 tank of gas. Problem solved. Fucking unbelievable. Try this shit, as it's only ~11 bucks at the parts store. Try it.

fiftytakedowns · « **Reply #98 on:** June 01, 2010, 11:49:20 PM »

HMM techron??? I once Did the seafoam through the intake? Ill try that techron, or maybe marvel mystery oil!

jeff_b · « **Reply #99 on:** June 11, 2010, 08:55:28 AM »

How'd you make out with the Techron?

fiftytakedowns · « **Reply #100 on:** June 13, 2010, 03:52:25 AM »

Have to move out, so I have to get back to that, however the problem doesnt really occur during the summer... go figure.

fiftytakedowns · « **Reply #101 on:** September 19, 2010, 04:59:55 PM »

replaced all the intake gaskets, and checked over the vacuum stuff.... No sign yet.

fuck this thing

fiftytakedowns · « **Reply #102 on:** March 06, 2011, 12:02:31 AM »