Service engine soon light

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Oct 9, 2007 | 04:52 PM

jhand124

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From: Farmington, Minnesota

Service engine soon light

I have a eary 99 350 with the 7.3. It has the edge module with attitude stacked with the predetor programer, neither is set to max. Truck also has afe intake and 4" exhaust. My service engine soon light comes on under heavy throttle and when towing. When towing the edge will defuel at medium boost, it's set to defuel at 26 psi and the egt's are with in limits. The turbo will also experience compressor stalling at 18-22 psi.

I heared the the light was due to the map sensor receiving a incorrect info. Has anybody experienced these symptoms? What did you do to correct them?

Oct 9, 2007 | 05:15 PM

miller_feed

Hook it, I'll pull it.

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From: Grand Lake, La.

Your truck will start defueling at 22-23 boost. And will throw the light.

Edit: Welcome to FTE.

Oct 9, 2007 | 05:19 PM

miller_feed

Hook it, I'll pull it.

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From: Grand Lake, La.

http://www.itpdiesel.com/store.php?c...on=show_detail

Get one of these. Most have them with chips.

Oct 9, 2007 | 05:30 PM

jhand124

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From: Farmington, Minnesota

Thanks, I just ordered it. What is the max boost you get out of your 7.3 and do you have compressor wheel stall.

Oct 9, 2007 | 05:33 PM

jhand124

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From: Farmington, Minnesota

What is FTE?

Jason

Oct 9, 2007 | 05:39 PM

zx250

Of the next Riffraff East

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From: Concord NC

FTE = The greatest site on earth or, Ford Trucks Enthusiasts. The same thing. Welcome to the site.

Oct 10, 2007 | 07:56 AM

miller_feed

Hook it, I'll pull it.

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From: Grand Lake, La.

Quote:

Originally Posted by jhand124

Thanks, I just ordered it. What is the max boost you get out of your 7.3 and do you have compressor wheel stall.

I can get 30+, but I don't like to go that high. Best to keep it no more than 25#. I would be careful with that programer. My DP-TUNER helps control my tranny. Shifts great and keeps it cooler. You can do lots of harm to your tranny if your programer/chip does not help with this. At 25# boost, I get no turbo surge.