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Old 05-03-2008, 10:23 AM
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pull codes with no scanner?

Hi guys. Sorry if I didn't get this in the right area, it's been a while since I needed any help! I need to know how to pull codes using the CEL. I know I did this before because that's how I verified I had a bad CPS. I've never had a scan tool and would rather not drive all the way back to town to get one today. When I was driving in this morning the truck (97 F250 7.3) would buck and idle rough and the CEL came on several times. It would always restart and run fine until it started to act up again, got worse as it got warmer. I replaced the CPS myself 2 years ago for this and never had the issue come back. I took it in for the recall less than 1000 miles ago and I suspect they one they replaced it with is as bad as my original one. Does anyone remember how to pull the codes using the CEL? tried cycling the key 5 times, and searced for 30 min on the web. Everyone says use a scanner but I KNOW I did it somehow before without one. Thanks in advance!
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Old 05-03-2008, 10:26 AM
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Honestly I have never heard about the on off with the ignition for a powerstroke Thats a new one on me. I know some vehicles you can, but didn't know you could with a powerstroke, so I can't help ya.
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Old 05-03-2008, 10:31 AM
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Key on/off does not work on a powerstroke. The only 5 or 8 key cycle I know of... is on the superduty to reset/add key fob's for the keyless entry.
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Old 05-03-2008, 12:12 PM
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hmm this is driving me nuts. I know I was even able to do the injector buzz test (I remember how loud they were)
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Old 05-03-2008, 01:53 PM
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If you find a key on/off sequence that allows a buzz test, please post it.
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Old 05-03-2008, 02:43 PM
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I’m going to subscribe to this thread, I don’t think it is possible but if it is I want to know how.

I know on the 82ish to 96ish Fords you could use a analogue volt meter and a jumper wire to get the codes.
On a Dodge around those same years you could cycle the key 3 times and count the flashes for the codes.
And on a Chevy you could put a jumper in A and B in the diag connector and count the flashes.
Never heard of a DIY way since OBDII came out in 96ish.
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Old 05-05-2008, 06:00 PM
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Well I gave up, took it to the dealer (well limped it..) turns out the injector module is failing, $1200, grrrr, not much a man can do, but wanted to post in case anyone else gets a similar symptom, the part is crazy expensive, $950...
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Old 05-05-2008, 06:30 PM
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I agree it can be done. I did it too as Autozone was reading out the codes with their tool. I think it is key off, hold mile reset button or trip toggle button and then key on, while holding either of those buttons. Code should show up in the digital odometer window. I read it somewhere I think. Hope it works.
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Old 05-05-2008, 06:43 PM
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^^ ^ ^
I think that's a Dodge thing...
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Old 05-05-2008, 06:44 PM
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Quote:
Originally Posted by flagracer View Post
Well I gave up, took it to the dealer (well limped it..) turns out the injector module is failing, $1200, grrrr, not much a man can do, but wanted to post in case anyone else gets a similar symptom, the part is crazy expensive, $950...
The IDM???

Just go to the junkyard and get one and put it on your truck!!!!!! If you haven't already paid the dealership!
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