Its not the crank sensor I don't think. The way it acts, its your pump. Put the fuel pressure gauge on the schrader valve on the fuel rail and test it while running, it should be 56-58. Anything lower, bad pump. Test it immediately after killing it, if it drops super quickly, something is wrong. It should hold PSI for at least 10 minutes. Let us know how that goes, and we can help you from there.Originally Posted by go5.3tt06
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Sure I will let yall know by tomorrow once I find out what guage pressure is/
Currently have-
CAI Bruteforce AEM, Vette servo, Hooker muffler, Nelson HPTUNER progam.
Future- Frount mount T-70, 212/218 cam 114LSA, 918 springs, high stall yank and swap to 80E tranny, #60 injectors, 255lph fuel pump, meth injector,better intake mainfold, 2/4 lower kit with airhelper.
Hey My truck got in gm dealership shop. I explained to them. So quick answer it say must be crankshaft position sensor goes bad. Like my dad told me same thing. But I didnt believe my dad first place. After GM told me, I relaized it. I paid $49 for them use their special computer to check it say bad crank sensor. ALSO he puzzled it show code 1,2 banks run to rich. He say thats why gas always eat up. I was like what. I been wonder why run rich? I not sure if he mean 1 and 2 on block or banks show rich. SO all I knew it was Allen Nelson tuned on my pcm. I dont know what he had done on it. Im gonna find out. So Gm say the crankshaft position sensor at dealership cost 89 dollars. I didnt pay. I want to look around that sell cheap. DO you know anywhere I could find? Also where crank sensor at? I been look around. I have no clue ha. Any picture of you have one on it. If you have one. It would be nice to show me so I can know what it is.
Currently have-
CAI Bruteforce AEM, Vette servo, Hooker muffler, Nelson HPTUNER progam.
Future- Frount mount T-70, 212/218 cam 114LSA, 918 springs, high stall yank and swap to 80E tranny, #60 injectors, 255lph fuel pump, meth injector,better intake mainfold, 2/4 lower kit with airhelper.
I dont understand how you can have the coils firing but the crank sensor is bad. Your Posts are very hard to follow.
2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s
2004 Buell XB12s
Of course it's running rich. Allen added fuel to make mo powa!
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Fixed it
2006 SilveradoLittle Black Bitch
The crank sensor is on the passenger side of the engine block just above the starter. You need to lower the starter to access the sensor. Be sure you disconnect the battery when doing this service.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
PAH! Of course!
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Okay. the rich for more power. no affect as well? Anyway I got crank sensor from auto advance parts cost me 48 dollars. I did everything like yall say about move the starter that way I able remove the old one crank sensor and put new one. It seem do fine so far. Im going to drive some more tomorrow. to see how it turn. I will update with yall asap. Thank yall for help out
Currently have-
CAI Bruteforce AEM, Vette servo, Hooker muffler, Nelson HPTUNER progam.
Future- Frount mount T-70, 212/218 cam 114LSA, 918 springs, high stall yank and swap to 80E tranny, #60 injectors, 255lph fuel pump, meth injector,better intake mainfold, 2/4 lower kit with airhelper.
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