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

DISCUSSION => Engine + Driveline => Topic started by: KevinV on May 13, 2008, 02:26:23 PM

Title: Problem with MarkD chip
Post by: KevinV on May 13, 2008, 02:26:23 PM

Hello,

I'm new here on this forum and i am hoping that someone can solve my problem.

I bought a MarkD chip 93 octane. But now my engine is running verry bad.
On idle and beneath 3500rpm the engine is running verry bad, like it gets to much gasoline. When i keep the throttle for example at 2000rpm the car starts slowing down, like the engine is getting no air.
Sometimes the engine cuts off on idle too.

The problem begins 2 minutes after cold start.

But once above 3500rpm the engine runs verry good.

I put my original chip back in and everything was ok...

I am from Belgium, so i think that maybe there is a difference between an european 318is and an USA version.

Can anyone help me along?

Title: Problem with MarkD chip
Post by: peerless on May 13, 2008, 02:41:22 PM

Quote

I am from Belgium, so i think that maybe there is a difference between an european 318is and an USA version.

I think you have possibly answered your own question.

For a absolute correct answer I think you will need to contact MarkD or the vendor that sold you the chip.

Title: Problem with MarkD chip
Post by: KevinV on May 13, 2008, 02:50:12 PM

I already mailed MarkD, but havent received an anwser.

I tought maybe someone knows what the exact difference is ?

Title: Problem with MarkD chip
Post by: EN318isPDX on May 13, 2008, 02:57:13 PM

Sounds like a bad chip to me. Any CEL?

Title: Problem with MarkD chip
Post by: tjts1 on May 13, 2008, 03:59:23 PM

Does your car have an O2 sensor in the exhaust?

There are 2 version of motronic 1.7 used on the E30/M42. One for cars with a catalytic converter and O2 sensor sold in the US and a few other markets, and one for the rest of the world without an O2 sensor.

Title: Problem with MarkD chip
Post by: Lukis on May 13, 2008, 04:07:17 PM

The MarkD is working great in my euro is :D

Title: Problem with MarkD chip
Post by: tjts1 on May 13, 2008, 04:39:44 PM

Quote from: Lukis;49239

The MarkD is working great in my euro is :D

Both versions were sold in europe.

Title: Problem with MarkD chip
Post by: batsbats on May 15, 2008, 05:33:31 PM

Difference in gas ratings?

Title: Problem with MarkD chip
Post by: KevinV on May 18, 2008, 02:20:30 AM

Had contact with MarkD.
Said that the software could slightly be different between an USa and my version.
He will try to make another chip by the number of my original chip.µ

So lets hope it will work!