Messages

1

For Sale / Free M42 parts

« on: August 08, 2012, 01:12:38 PM »

I have a stock exhaust manifold and upper oil pan section available free in West Seattle.  Contact me atgregm2002@comcast.net

2

Engine management / Failed Emissions :(

« on: December 08, 2009, 11:55:40 PM »

Just a little clarification of the issues. I did the head job for Julia. Also rerouted the hoses back to stock from a kluged arrangement on the icv and crankcase hoses. We pulled the plugs which looked good, not wet or carbonized. The coils were tested with a large gap plug and 3 of 4 looked the same and one was weaker in appearance. The motor was tested for vacuum leaks again and passed. The ICV was cleaned again and seems to work. The O2 sensor seems to pass but appears rather old and crusty. The plug were fresh when the valve job was done a couple of weeks ago and the plug wires replaced a week later. Compression is good and even.The fuel injectors were a bit dirty looking and I'm wondering if one leaks down a little. It is frustrating for Julia and puzzling for me. Any ideas would be welcomed

3

General Topics / Help with M42 running issues

« on: November 16, 2009, 10:04:07 PM »

I recently installed a head on a 91 318is m42, Did the chain guides also. Car was brought to me on trailer. Now with everything together, it will start but not respond to the throttle properly or idle. All air hoses were replaced are seem tight. I can find no obvious air leak. The stomp test says 1215 or airflow meter. Tried another one no difference. The TPS switch seems ok, it has variable resistor as the throttle moves. The funny thing is when I disconnect the tps switch and start the car, it pegs to redline and the key must be turned to stop it. I am at a loss with this. Tomorrow I'll go back over everything again and see if I missed any thing. Any ideas?? The crank and cam sensors must be ok as it starts ok but won't react to the pedal at all, won't hold a steady rpm anywhere.