Author Topic: stomp test, 1215? (Read 4546 times)

superj · « **on:** January 10, 2010, 12:28:16 PM »

getting ready to head out but thought i would throw this up. i did the stomp and count test and i think it was reading 1-2-1-5 and hten it would hold for a second and repeat. i am going to google what hte codes are but if someone happens to know, that would be great

DesktopDave · « **Reply #1 on:** January 10, 2010, 12:29:44 PM »

1215 is an AFM problem. Check the connector...mine was shorted with water...I pulled out the BMW resistor pack extension & tossed it. Cleared up the code right away.

Might be a sticky flapper, or a bad temp sensor too. There are testing directions in the ETM & Bentley IIRC.

superj · « **Reply #2 on:** January 10, 2010, 09:38:28 PM »

don't know what it was. it started running fine now. the wife thinks it was the gas that was in it since this is just a weekend car (well, was till the engine in her jeep went bye bye)

i pulled all the plugs for anything and sprayed them out with wd-40 and also ran with the icv unhooked for about a day. it got rid of the hunting idle but raised it up to 1200. once i noticed the car was running without bucking anymore, i plugged hte icv back in and the car has been great ever since.

i think next time it happens, i will try unhooking the battery for a while and see if it does it again and then checking the codes so i get it fresh

DesktopDave · « **Reply #3 on:** January 11, 2010, 07:04:30 AM »

Might be that the WD40 cleaned the contacts or drove out the water. Glad to hear your troubles are solved!

I use contact cleaner instead of WD40 though. Less residue and better cleaning, even good for computers & other electronics. You can get a spray can at Radio Shack for a few bucks. Don't get too much on your hands, it has a mild acid to etch corrosion off copper, tin & gold.

superj · « **Reply #4 on:** January 14, 2010, 11:43:50 AM »

now that you say that, i have a can from when i did my megasquirt build for my old 325i.

DesktopDave · « **Reply #5 on:** January 14, 2010, 12:08:29 PM »

Do you still have the code for that? I have a 2.2 unit that I was thinking of wiring up...on a 325i that I just bought!

superj · « **Reply #6 on:** January 15, 2010, 03:55:24 PM »

the maps for the megasquirt? no, i could never get it to run, i'm not computer literate enough or something. it bench tested perfect but when it came to running i couldn't get it figured out.

i got all my info from one of the guys on e30tech.com. he sent me a map and helped with everything. e30tech is the megasquirt for e30s headquarters.

i might have the proper tps though, for the 325i. i had a few real varible tps from other model bmws, not the on/off like the 325i comes with

DesktopDave · « **Reply #7 on:** January 15, 2010, 04:28:37 PM »

I heard that MS 2.2 couldn't run the BMW IAC without some special wiring or a daurghter card of some sort. I've read some of the directions & wikis out there, seems pretty involved. Eliminating the AFM is a big step, too bad the IAC cant go too.

Which BMWs have a variable? The 325i seems to have a bad one anyway...just ran it today and it was doing the famous M20 wandering idle.

superj · « **Reply #8 on:** January 16, 2010, 01:22:37 PM »

you do have to either run a daughter card or no iac and just set the throttle screw out a bit for idle speed.

you can get anyone from an m30 3.5 that is newer then.......... i cannot remember. i had one from an early 903 735, one from a 90s 535 and one from something else. they are hear somewhere