Injectors? - Diesel Truck Forum -
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post #1 of 5 (permalink) Old 02-19-2010, 05:03 PM Thread Starter
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I am getting P0090, P0093 and P0094 codes. I am loosing power on hills, wont let me go over 1800RPMs, puts me into limp mode. I see on here with the P0093 it usally means injectors, does it still with the other codes?

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post #2 of 5 (permalink) Old 03-04-2010, 11:23 PM
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0093 is low rail pressure IIRC. I used to throw that all the time. Then I installed a new CP3 and fixed the issue.

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post #3 of 5 (permalink) Old 03-07-2010, 04:59 PM
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Change your fuel filter?

01 Chevy CC/SB 4WD. Not Quite Stock.
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post #4 of 5 (permalink) Old 03-07-2010, 06:08 PM Thread Starter
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OK, here is some more backround info. I when I first bought this truck, about 3 years ago, it did this same thing (as what I stated it my first post), took it back to the dealer, they found a bad wire on the fuel regulator. Seemed to fix the problem, during the winter, I came out it started and ran for about 10-15 seconds, quit. Would not start again. I primed it, ran good the rest of the day. Next day same thing, I take it to a garage they can't find anything wrong. What I figured out, if I park on the level or down hill it will start everytime, but if I park on an uphill, after about two hours it will start and run about 10-15 seconds, winter or summer. Can anybody tell me if a cracked injector would let the fuel drfain back to the tank? Can these problems be all linked together or do I have a lot of different problems? Another thing I noticed on my way home from work, I can run it pretty hard on the flat from redlight to redlight, but when I come to a hill, I know it is going into limp mode I baby it and it will still go into limp mode. I am really getting confused. One dealer told me that my leakage rates are high, but with a p0090,93 and 94, could it be something else? its wierd it won'y act up on the flat even if I run it hard.

Thank you so much for your time,
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post #5 of 5 (permalink) Old 01-29-2011, 08:11 PM
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I had a 01 LBY in about a month ago, with a P1094 and a P1093 and the truck would'nt start by itself, only with ether. After various troubleshooting and testing, I changed out the Injectors with reman. injectors. I cleared the codes and it fixed the problem! Truck ran fantastic and the customer was happy with it!
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