Intermediate CEL

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Jul 23, 2013 | 10:37 PM

nuke tech

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From: Evington

Intermediate CEL

I have a cel that will appear with the miss or total loss power then the cel go out and normal running. The truck can be started with no cel but will appear with a few blimps of the throttle. You can reverse this, cel on, blimp the throttle a few times and cel go off. I changed CPS today, checked external connectors at valve covers for damaged wires. Have not checked for codes. Do not have scanner for the psd. Tried the smell test at valve cover cap, nothing obvious. Just real odd that punching throttle can force cel on or off. Will try to barrow a scanner tomorrow. Without the codes My guess is ICP or pull valve covers. 96 f350 auto 4x4

Jul 24, 2013 | 12:05 AM

glovemeister

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If you disconnect ICP(or find oil in sensor/harness) and it runs better, sensor/harness is bad.

I would be more concerned with a lack of HPOP pressure with a cel coming on based upon load like that though.

Jul 31, 2013 | 06:35 PM

nuke tech

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From: Evington

Finally got AE software. Codes show up after KOEO test. P0279 cyl. 7 injector circuit low & P1298 injector driver module failure.

Jul 31, 2013 | 07:33 PM

nuke tech

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What I have read is put battery charger on overnite, check idm for water and pull rt side valve cover. Cure codes other than idm failure 1st.

Aug 1, 2013 | 01:16 PM

nuke tech

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Ohm check good from disconnected IDM harness to injectors. Removed rt side VC, no damage. Got lunch going back to scan

Aug 1, 2013 | 02:12 PM

nuke tech

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From: Evington

Buzz test. #3 was not as loud.

Aug 2, 2013 | 06:30 AM

nuke tech

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Anyone there?

Checked under VC wring, all looks and ohms perfect.

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Aug 2, 2013 | 12:00 PM

Hussler

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From: Medford Oregon

<table style="font-size:14" border="1" cellpadding="1" cellspacing="0" width="100%"><tbody><tr bgcolor="70D6AD"><td align="center" valign="top">0279</td> <td align="center" valign="top">INJ</td> <td align="left" valign="top">Injector circuit low - Cylinder 7</td> <td align="left" valign="top">FMEM mode, engine will run on 4 cyl.</td> <td align="left" valign="top">Harness short to ground</td></tr></tbody></table>
With the codes you provided check the main wiring harness for rub marks where it goes over the valve cover.

Aug 2, 2013 | 04:30 PM

#10

nuke tech

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From: Evington

That has been checked, but I just removed quite a bit of the conduit only seen 1 place where foil shieding had been pushed aside. My thoughts are with the IDM. To update, with DTC's removed, truck will pass all test. KOEO, KOER, buzz, cyl. Contribution and switch(?). Don't know, need to get away from it tonite. Internet off hear in lynchburg area so can't search for info

Aug 3, 2013 | 02:24 PM

#11

nuke tech

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Removed IDM cover and found water. Any recommended vendors?

Aug 3, 2013 | 08:53 PM

#12

427 fordman

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From: Plankinton, SD

If you get a 120V out of a Super duty truck, its a slight upgrade to ours. I bought a remanufactured one on ebay, don't remember from who though.

Aug 8, 2013 | 09:05 PM

#13

nuke tech

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From: Evington

GB IDM arrived today. So far all is good. I got to thinking about the moisture vent on back side of the idm, so after installing I put sealer where idm contacts fender to prevent water from getting near this vent. By the way, the GB idm was identified as 110 volt.