neward

I had Authority MAF kit including chips but they sent me bad chips, can I order GURU chips ?

v944god

Hmm, I don't think different MAF setups and chips mix. I will work, but not what your really looking.

Sami951

Didn't the autothority MAF use some special chips that were specially mapped to use the hotwire mass air sensor? If so, guru chips wouldn't work properly unless you plugged some sort of a signal massager in between the MAF and DME...

Ag951

If they sent you a bad chip, call them about replacing it. If they won't do that, call your credit card company about disputing the charge.

Blueman33

I bet there is something wrong besides the chip. APE chips, while not being the most aggressive seem to have a good rep.

My understanding is a MAF kit is not dependent upon chips being matched to them. If that is wrong a tuner can ring in with his info.

I replaced my APE chips with Guru. I will be going back to my APE chips soon and will have a set of Guru chips for sale.

jsonnen

Hey Blueman, did you ever get your stumbling issue sorted out?

neward

After completely install the Autothority kit to the car I got no spark. It would not start of course. I swap the chips with the factory chips and It start for 2-3 second and shut down. I try to find the fast way to get the new chips so I can get my car out before snow coming.

Blueman33

My chips still stumble. I wrote Danno to ask for replacements or to trade the chips for a dual port WG (and go back to APE)

Havent heard back yet.

Peckster

Don't get other chips, get one's that work, you paid for them.

mochman

Anyone else have a prob. with guru chips stumbling

roadrunner

...Stumbling where in the rpm range? I had a intermittent high rpm + high load misfire when I had my Weltmeister chips, and it still occurs with the Guru chips so I can't say it's the Guru chips causing it. I guess I'll have to systematically go through the ignition system including getting Icesharks's grounding kit as the car has over 190,000 miles on it. It does pull very hard if I lift off a bit when it stumbles.

Blueman33

It stumbles between 3-4000rpm. the stumble is about 3 times quicly at WOT, but at half throttle it's obnoxious. woooo-woooo-woooo-woooo-

The original chips were APE. MAde no other change. I will put the APE back in to confirm they still work correctly.

'86 944 turbo

My guru chips are amazing. No stumbling. The guru chips made my car much smother then the original chips