dead pedal

[01 crew]

when i tow my toy hauler between 2500 and 2800 rpm i get dead pedal for 30 sec or so and then power comes back. usally no codes twice got engine overboost. dealership says its my exaust b.s its a 4" magnaflow.i read on this forum someone said they could flash the computer to 02 and it would help if any info im desperate thanks

 

[Turbo Buick 6]

Fill out your sig so that other know what all is done to your truck. A log of this with EFI could help.

Welcome

 

[Darius6t9]

I'm going to guess it's a 01' Crew cab. And I agree, No way it exhaust.

 

[01 crew]

sorry havent done sig yet 01 crew cab 4"magnaflow hypertech programer not much

 

[TheBac]

My opinions:

1) Try going back to stock tune first. It could be something in the Hypertech tune causing it.
2) Check for codes. Could be Throttle position sensor, maf or something else.
3) Wiring from throttle could be grounding out intermittently.
4) Others have suggested checking air or fuel filter, but I dont think its that.

 

[01 crew]

it does the same thing without programer .i have only had a code twice and it was engine over boost most the time it does it there are no codes.changed filter and dealer has upgraded the injectors its crazy.

 

[TheBac]

Did it do it before the dealer serviced the injectors?

 

[01 crew]

yes it got better i could run my programmer in stage 2. now it will do it without again.

 

[whitetrash21]

TPS wiring has a bad ground??

 

[01 crew]

have you heard of this before? that sounds fun to find

 

[whitetrash21]

have you heard of this before? that sounds fun to find

I have, but it involved a quadzilla programmer, not hypertech and not a sstock truck. Like jon said, I'd check your TPS wiring. A bad ground or loose connection could cause something like this....

I know the NSBU can cause some funny issues, not sure if this is one of them or not.....

edit: any codes??

 

[GMC_2002_Dmax]

GHOST PEDAL,

Common 2001 OS problem once a programmer is used.

Some of them corrupt the OS when trying to remove the top speed limiter.

A 2002 OS upgrade is all you need and problem will be solved.

Let me know if I can help.

Tony

 

[01 crew]

i would love some help my # 559-333-6364 adam thanks

 

[01 crew]

just wondering if any one else has heard of dead pedal or ghost pedal ? i think gmc 2002 dmax might have a soulution waiting to hear back thanks for your input ,guys

 

[specialagentPK]

If you tell us where you are there may be someone in your area with EFI Live that could throw a 2002 OS in your truck.

 

[01 crew]

im in fresno california

 

[LBZ]

Should have no problem finding someone there! I bet you already have a few PM's offering help

 

[01 crew]

not yet still waiting i hope thats whats wrong sounds too easy.ive been trying to find answers for 8 mos thanks for the help

 

[The Neens]

I'd be willing to meet you in Bakersfield...

 

[GMC_2002_Dmax]

If you have a California truck you will need a OS from a CA/02 OS.

If you brought it to CA from another state and it is a Federal Truck I can supply the OS/15186006 Federal File.

I do not know if I have a 2002/Cali OS in my laptop, but If anyone has a 2002 in CA and can report what the segment info is then I can check or maybe they can just post the OS cal here.