ECM blackouts

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Dec 13, 2002 | 08:59 PM

JayH

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Racer

Joined: Sep 2002

Posts: 317

Likes: 1

From: Maple Valley WA

ECM blackouts

So, there I am running DataMaster against my '95, collecting and logging data in an effort to troubleshoot this idle problem and the link between the ECM and the Datamaster software goes down. It reinitializes itself, continues to collet data and then does it again.

I lost the connection 44 times, each time between 7 and 12 seconds (with the interval getting longer the longer the engine has been running,) before the engine stalls out.

Freescan showed the same phenomenon.

I'm guessing ECM is bad as all the sensor data looks consistent with the way the engine is running and no DTC's are being thrown.

Any thoughts?

Jay

Dec 15, 2002 | 01:08 AM

JayH

Thread Starter

Racer

Joined: Sep 2002

Posts: 317

Likes: 1

From: Maple Valley WA

Re: ECM blackouts (JayH)

As Mike suggested in the Tech forum, this was a problem with the serial communications on my laptop.

Jay

Dec 15, 2002 | 10:15 PM

Goody

Le Mans Master

Joined: Oct 2000

Posts: 6,362

Likes: 30

From: Oak Harbor WA

Re: ECM blackouts (JayH)

May not be the ECM itself, but a wiring short.

Dec 16, 2002 | 02:40 AM

JayH

Thread Starter

Racer

Joined: Sep 2002

Posts: 317

Likes: 1

From: Maple Valley WA

Re: ECM blackouts (Goody)

heh, Goody, check the post just before the one you posted. :seeya

Jay

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