Put my chip back now RPM jump and CEL on - Ford Powerstroke Diesel Forum
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Old 08-02-2013, 06:29 PM
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Put my chip back now RPM jump and CEL on

Hey guys, last January 2013 I took my chip off , it's a DP Tuner with 5 settings. 1 - stock , 2 High idle warm up, 3- 60hp economy, 4- 80hp and 5 - 100hp or 120hp.

It's 1996 Powerstroke 5speed 4x4.

Anyways, after I unhooked the batteries and removed it off my PCM I hooked the batteries back up and drove it around with the chip off till sunday July 28th I think? Anyways, when I put it back on I unhooked the batteries, pulled out the PCM, slid the chip back on and installed the PCM then hooked up the batteries. Chip lit up, all 5 stages worked and left it at that. Drove it tuesday July 30 (very hard start and white smoke came out, took longer than normal to turn over) and after a few minutes and a couple blocks my RPMs started fluctuating and the CEL came on. So I pulled over since I was at my doctors office by this point anyways and turned my truck off. Came back to it 30min later and started it. Everything seemed fine, CEL was off and I put my chip back to stage 1. I forgot to mention that the RPMs were jumping around on stage 3. Drove the truck for the rest of the day on 1 (stock) and no issues. Wednesday the 31st was also a hard start, longer than normal to turn over and white smoke. August 1st truck started great as well as today but at one point yesterday I had little surging driving in gear as if my IPR was acting up like it did in Nov of 2012 and I had new one installed. Today Aug 2nd I was curious how the chip would act again so I turned it up to stage 3 and drove fine. Or so I thought. After about 5minutes my RPM's were all over the place so I stopped my truck and put the chip to 1-stock, monitored it in neutral and they jumped up to almost 2000rpm and CEL came on. Turned my truck off for about 15sec, started it up again. Rpm's jumping a bit so I just turned it off for about 1hr, came back to it CEL off and drove home no issues on stage 1. Gonna remove my chip I think and just not deal with it anymore. PCM issue? Injectors? Or is the chip just ****ed haha. I never had issues with it when it was on the truck before though from Sept 2012 to January 2013 DP Tuner. Or did I remove it improperly or install it improperly?
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Old 08-02-2013, 07:52 PM
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Def. remove the chip and re-test. If it runs normally without the chip, it's NOT a PCM issue, it's the chip. It's possible that it's not seated properly, but you took the right precaution of disconnecting the batteries.
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Old 08-03-2013, 12:12 AM
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Sorry bout the grammar above lol, half corked and feeling great! I didn't think it was a PCM issue. When I took the chip off, I put it in my glove box. Now im wondering if the connection points are dirty. Should I spray them with an electrical cleaner point spray? As for the chip, im not scared to spray it with an electrical cleaner but the PCM I am. If the chip is screwed up, I honestly couldnt care, it came with the truck when I bought it. My fuel milage was always better without it and im not a power hungry guy. I always preferred reliabiilty over power anyways.
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