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Old 11-06-2009, 10:59 PM   eBay Motors   #11 (permalink)
1GCHK23D
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What does your tune desire ?
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Old 11-06-2009, 11:09 PM   eBay Motors   #12 (permalink)
gya0ma7ha
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It desires 23,061, but my rail only sees about 10,500 at 100% throttle.
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Leather, Power everything, Autometer Cobalt Boost and Pyro, HID headlights/fogs, 05' Tailights, De-Badged, Some sound stuff
35" Wrangler DuraTracs on KMC 20" Rockstars and a 6" procomp drop knuckle and black Westin runners.
EFILive tuned with DSP5 for Extra Go-Go Modded intake horn, Banks Big Head wastegate, banks ram-air intake, banks straight pipe
Other TOYS:2005 YAMAHA YZ250F Rat Racing motor Enzo Racing Suspension: Forks and shock
Need List: CP3!!!!
Wish List: Transparts iv, Lift pump, Turbo upgrade.
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Old 11-07-2009, 11:17 AM   eBay Motors   #13 (permalink)
DMAXchris
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He doesn't have a lift pump, so how could that be the problem?

Something is wrong with the CP3. I'm not a CP3 wizard so I cant tell you what exactly. My guess would be a bad pressure regulator. Or the plunger is sticking.
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Old 11-07-2009, 11:56 AM   eBay Motors   #14 (permalink)
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I meant that I think adding a lift pump would fix it . Maybe you could find out with a pressure/vaccum gauge in the supply line .
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Old 11-07-2009, 12:04 PM   eBay Motors   #15 (permalink)
DMAXchris
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10k psi at 1900µs isn't right. Stock fuel systems will do that all day long.
Check your tune and make sure it is commanding 180MPa and not 80MPa. lol.

You shouldn't drain the rail with that low of a pulse.
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Old 11-07-2009, 09:12 PM   eBay Motors   #16 (permalink)
gya0ma7ha
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Quote:
Originally Posted by DMAXchris View Post
10k psi at 1900µs isn't right. Stock fuel systems will do that all day long.
Check your tune and make sure it is commanding 180MPa and not 80MPa. lol.

You shouldn't drain the rail with that low of a pulse.
That's what I was thinking.

I ran a tune with the stock ipw, i think it 1450us, and the pressure at it's lowest at full throttle was 16,000, then started to climb up to 20,000 (commanding 21,000)
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2001 2500HD LT CCSB 4X4 LB7 TAPE DECK INCLUDED
Leather, Power everything, Autometer Cobalt Boost and Pyro, HID headlights/fogs, 05' Tailights, De-Badged, Some sound stuff
35" Wrangler DuraTracs on KMC 20" Rockstars and a 6" procomp drop knuckle and black Westin runners.
EFILive tuned with DSP5 for Extra Go-Go Modded intake horn, Banks Big Head wastegate, banks ram-air intake, banks straight pipe
Other TOYS:2005 YAMAHA YZ250F Rat Racing motor Enzo Racing Suspension: Forks and shock
Need List: CP3!!!!
Wish List: Transparts iv, Lift pump, Turbo upgrade.
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Old 11-07-2009, 09:26 PM   eBay Motors   #17 (permalink)
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How many miles are on the truck and when is the last time the fuel filter was changed?
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Old 11-07-2009, 09:29 PM   eBay Motors   #18 (permalink)
gya0ma7ha
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It has 175k as of today, the filter probably 8k, im gonna change it tomorrow, and i was thinking about blowing out the fuel lines, what do you guys think?
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2001 2500HD LT CCSB 4X4 LB7 TAPE DECK INCLUDED
Leather, Power everything, Autometer Cobalt Boost and Pyro, HID headlights/fogs, 05' Tailights, De-Badged, Some sound stuff
35" Wrangler DuraTracs on KMC 20" Rockstars and a 6" procomp drop knuckle and black Westin runners.
EFILive tuned with DSP5 for Extra Go-Go Modded intake horn, Banks Big Head wastegate, banks ram-air intake, banks straight pipe
Other TOYS:2005 YAMAHA YZ250F Rat Racing motor Enzo Racing Suspension: Forks and shock
Need List: CP3!!!!
Wish List: Transparts iv, Lift pump, Turbo upgrade.
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Old 11-08-2009, 09:19 AM   eBay Motors   #19 (permalink)
gya0ma7ha
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If changing the fuel filter and cleaning the lines doesn't work, I guess i need a new CP3, is it worth my money to go ahead and get a modded one? Will a modded one work well without a lift pump?
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2001 2500HD LT CCSB 4X4 LB7 TAPE DECK INCLUDED
Leather, Power everything, Autometer Cobalt Boost and Pyro, HID headlights/fogs, 05' Tailights, De-Badged, Some sound stuff
35" Wrangler DuraTracs on KMC 20" Rockstars and a 6" procomp drop knuckle and black Westin runners.
EFILive tuned with DSP5 for Extra Go-Go Modded intake horn, Banks Big Head wastegate, banks ram-air intake, banks straight pipe
Other TOYS:2005 YAMAHA YZ250F Rat Racing motor Enzo Racing Suspension: Forks and shock
Need List: CP3!!!!
Wish List: Transparts iv, Lift pump, Turbo upgrade.
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Old 11-08-2009, 10:04 AM   eBay Motors   #20 (permalink)
racinmike77
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I wouldnt mess with blowing out the lines. A filter change is always a good idea though. With 175,000 a new cp3 is a good idea and the modded ones out there are worth the $$ IMO.
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