Halltech C5 Killer Bee + Texas Speed Headers

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Aug 28, 2021 | 02:24 PM

ltnate

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From: Louisville

Halltech C5 Killer Bee + Texas Speed Headers

installed both yesterday, went to fire it up and all seemed well. Took it out for a spin and the car would barely get to 20mph before sputtering. Took off the Halltech and it drove fine for about 30 min then it wouldn't idle and was missing. It threw numerous MAF and O2 codes. Letting it cool off now to see what the hell is wrong. Shouldn't be anything too serious, right?

Last edited by ltnate; Aug 28, 2021 at 04:46 PM.

Aug 30, 2021 | 11:36 AM

INSTIG8R

Racer

Joined: Nov 2017

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From: Aiken, SC

Is the intake the version that switches to a ls7/card style MAF? If so, you need a tune

Sep 3, 2021 | 03:00 PM

ltnate

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From: Louisville

Quote:

Originally Posted by INSTIG8R

Is the intake the version that switches to a ls7/card style MAF? If so, you need a tune

Yes it is...I was told I need to get the LS7 MAF Tuner file from Halltech.

Sep 21, 2021 | 01:39 PM

ltnate

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From: Louisville

Car runs great with headers only. Reinstalled the Halltech with the correct MAF tables and now car won't get past 30mph again. Now I'm kind of lost...probably something stupid I'm doing wrong. Any help would be GREATLY appreciated.

Sep 21, 2021 | 05:21 PM

ltnate

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From: Louisville

Quote:

Originally Posted by C5club

Time for a $500 tune.

Which is what I just paid someone to do but obviously not the right person...

Sep 21, 2021 | 09:38 PM

strand rider

Safety Car

Joined: Dec 2011

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From: Redondo Beach CA

check for leaks. coming from working on non computerized cars, I was surprised at how critical this issue had become. My car needed every connection to be airtight to run correctly.

I hope it turns out to be that simple.