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11-19-2003, 03:20 AM
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Join Date: Nov 2003
Location: american fork,ut usa
Posts: 4
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I have been working on this problem for a week now, maybe some one has some info. Under acceleration at 4200 rpm the engine cuts out and wont shift unless I back off the gas then it shifts fine and check engine light is on. I have the Paxton Novi 1200 series supercharger. Any suggestions are appreciated!
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11-19-2003, 03:20 AM
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Join Date: Nov 2003
Location: american fork,ut usa
Posts: 4
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I have been working on this problem for a week now, maybe some one has some info. Under acceleration at 4200 rpm the engine cuts out and wont shift unless I back off the gas then it shifts fine and check engine light is on. I have the Paxton Novi 1200 series supercharger. Any suggestions are appreciated!
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11-19-2003, 07:55 AM
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Join Date: Jan 2003
Location: Portland, OR
Posts: 609
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maybe take the supercharger off... ???
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11-19-2003, 11:05 AM
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Join Date: Apr 2003
Posts: 318
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Buy a Whipple??? 
Sorry ...couldn't resist...
Sounds like an a knock sensor may be picking up some detonation and cutting power?? |
11-19-2003, 01:11 PM
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Join Date: Jan 2003
Location: Pinson, AL ,USA
Posts: 124
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Did you use a reprogramer after you installed the Supercharger? Had a Whipple on one of my H2's and it ran terrible until I used the programer.
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11-19-2003, 04:08 PM
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Hummer Professional
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Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
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My guess is that the torque management is kicking in. I had the same problem with my Whipple and had do have the PCM custom tuned and the T/M removed. I had mine before Whipple had the programmer to fix the problem. If I were you I would buy the Predator programmer and that should solve your problem.
2003 H2 Hummer, Yellow,Polished Whipple Supercharged, Edelbrock ceramics, catback,18" Ambush w/mudders,lots of goodies!
Y2K Corvette Millennium Yellow Convert/Blk/Blk, B&B headers, B&B Tri-Flo's, H-Tech MAG,GMS MAF, RM Racing TwinFlow.
1994 Chev 454 Suburban, Blown, Doug Thorley
1970 Trans Am, balanced, blue printed, Hooker ceramics
www.4swimwear.com
__________________
2003 H2 Hummer, Yellow,Polished Whipple Supercharged, Dynatech long tube headers, catback,18\" Ambush w/Toyo MT\'s,lots of goodies!
Y2K Corvette Millennium Yellow Convert/Blk/Blk, B&B headers, B&B Tri-Flo\'s, H-Tech MAG,GMS MAF, RM Racing TwinFlow.
1994 Chev Suburban Blown
1970 Trans Am balanced, blueprinted, ceramic headers, etc.
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11-20-2003, 02:27 AM
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Join Date: Nov 2003
Location: american fork,ut usa
Posts: 4
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Thanks alot for all your help. I heard it was also plugged catalytic converters so we took the cats off and ran it down the street and the h2 ran and shifted like it should, so I will replace with new cats and muffler and should solve my problem.
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11-21-2003, 03:53 AM
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Join Date: Nov 2003
Location: american fork,ut usa
Posts: 4
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well we put the new cats on today and it still acted up, so after 3 hrs of pulling hair my brother decides to go back to basics and found a plugged up fuel filter and cost $6.99 This fixed our problem and it runs great!!
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