AP2 here with the issue

 

Thanks for feeding back. Might save some more for a Motec M4 with Boomslang harness.

Hopefully Haltech comes through for your guys.

 

I just purchased the PNP platnium pro for my ap1

 

2003 Ap1 here. Had the unit installed and tuned as of January 2013 and have spent over 25 hours tuning it. Not every time but vehicle has moderate to severe misfiring up top (7400-8000rpm) Sometimes it even feels if the vehicle has hit lean cut (datalogs have proven it is not the case).

Also, will tune the vehicle, it feels fine, and 2 days later it runs so sluggish and sputters at many different rpms. My tuner has been tuning with Haltech (before they were actually Haltech) since the later 80's and early 90's so I know it is not the tune. He is stumped and I am tired of driving around a vehicle that drives so poorly. Really frustrated that there isn't even an answer at this point.

Last, what kind of mpg are other N/A guys getting? My mpg is horrible and I didn't change my driving habits, gas, or anything else from switching from stock ecu. Stock ecu i managed 27-28 mpg around town and with the Haltech unit i barely make 23mpg.

Email has been sent to Matt at Haltech.

David

 

any news on solving these random misfires? I am looking to buy Haltech PnP with racepak for my S/C ap1

 

I'll be getting tuned on Apr 5th. I'll let you guys know if there's any issues.

 

I believe we had one misfire at 7800 the other day, but we didnt put much into it because of the injector misfiring we were having initially. Now that Ive fixed that, Im only waiting on my wideband to get here so we can get the car back on the dyno get back at it. Hopefully, Ill have final numbers within the next 2 weeks.

 

Well, I see that Haltech has gone dark again. Maybe I'll buy a Motec.

 

If you have the money, I say go for it!

 

You won't regret it!