M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => General Topics => Topic started by: fiftytakedowns on August 05, 2009, 01:40:47 AM

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: fiftytakedowns on August 05, 2009, 01:40:47 AM

The Car doesnt misfire at mid RPMS anymore, but still bogs down when cold.

WTF

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: fiftytakedowns on August 05, 2009, 01:42:39 AM

http://www.m42club.com/forums/showthread.php?t=7894 more info and symptoms.

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: tjts1 on August 05, 2009, 01:47:55 AM

Did we try swapping the AFM from my car? I don't remember. Bad AFM can have weird symptoms. At least you eliminated the ignition system.

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: fiftytakedowns on August 12, 2009, 01:31:00 AM

Car DOES STILL misfire at mid RPMS. WUT is going on

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: Danny707 on August 12, 2009, 01:45:28 AM

I have an AFM for sale in Vacaville, 20 mins away.

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: 3bvert on August 14, 2009, 03:56:04 PM

cam sensor ?

I just ordered all the sstuff to do a cop conversion, so this thread caught my eye

I just finsihed a battle with a mid range stutter.and it seemed like it was bogging down, yet the stomp test showed no codes !!. stutter would come on about 3k up to about 4k. would mostly notice when held at those rpms, crusing the freeway, not  showing up going through them in a fast upshifting drive

on antoehr froum it was suggested the afm, or the crank sensor , or the cam sensor. luckily I had spares of each.
replaced the cam and crank sensor as a pair, problem gone

then a few days later when I had more time, started switching one at a time, so I could see which was really the bad one,( and trash the dead one)  started at the top ( cam)

did nto have to test any further

my engine (some suggested from tjts threads) remove throttle heater and hoses, 4 pintle injectors, volvo fan, chipped, ac delete, ps delete, magnaflow mufler

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: fiftytakedowns on August 15, 2009, 04:02:12 AM

Quote from: Danny707;76747

I have an AFM for sale in Vacaville, 20 mins away.

I already got a spare working one :/

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: fiftytakedowns on August 15, 2009, 04:03:43 AM

Next time I hit up a junkyard, I'll definitely pick up a Cam sensor.

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: KenC on August 15, 2009, 09:39:16 AM

Mine still throws this code too, but my symptoms are gone.

It's really easy to test the crank and cam sensors with a multimeter.

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: 3bvert on August 15, 2009, 10:00:51 AM

Quote from: KenCopperwheat;76904

Mine still throws this code too, but my symptoms are gone.

It's really easy to test the crank and cam sensors with a multimeter.

really ?

are you just checking continuity or a specific number....can you explain so I can see if my others are within limits too

and I still find it interesting, that I had a cam sensor go bad, and not have it show up on the codes

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: KenC on August 15, 2009, 10:44:18 AM

Quote from: 3bvert;76905

really ?

are you just checking continuity or a specific number....can you explain so I can see if my others are within limits too

and I still find it interesting, that I had a cam sensor go bad, and not have it show up on the codes

I can't remember what the specific resistance spec are for each, but they're listed in the Bentley. Just use a multimeter on the connectors

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: 3bvert on August 15, 2009, 09:32:29 PM

so is this a problem when installing the cop conversion. I should have all my parts by wednesday to install, would just like a heads up

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: KenC on August 15, 2009, 10:31:46 PM

No, not an issue with the COP kit at all! :)

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: 3bvert on August 17, 2009, 10:32:57 PM

thanks
still waiting on my kit, got the shipping info today on the last of the stuff I need :D

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: Matt-B on August 18, 2009, 01:22:42 AM

got mine in!!!

Title: JUST did COP conversion, still pulling a 1271 code wtf
Post by: 3bvert on August 18, 2009, 02:17:31 PM

hows it run, matt
can you notice any difference ?
the last of the stuff I need get here thursday