Okay...I've done some searching but I did not seem to find anybody else throwing the same exact codes as I am with my Haltech. I've got an APS ST and exhaust, Cosworth, and recently installed Haltech. I'm having one noticeable issue along with several codes. We drove around on the street for a short while to do some tuning, and a couple 3rd gear wot pulls. I'll be going to the dyno on Monday for fine-tuning the wot.

First when starting the car I have to crank it for an extra few seconds. I came across https://my350z.com/forum/engine-and-...and-p1289.html and will have to investigate that, but any other input is much appreciated.

Second, codes I'm getting are P0101 (MAF), P0103 (MAF), P0171 (Lean, Bank 1), and P0442 (EVAP). I figure the P0101 and P0103 could be related to a thread where I saw Hal say:

"Scale down the Haltech 'MAF Limit' table. This limits the maximum airflow reading for a given RPM. MRG, do you still have any need to for the MAF - why not disable it?"

For P0171 I figure doing a really good street tune should fix the issue.

As for P0442, I'm honestly lost since I nor my mechanic/tuner hasn't touched the EVAP to my knowledge.

If I missed some threads with good information during my searches, my apologies - please link them in here.

And thanks for the help in advance

 

anybody?

 

There are troubleshooting algorithms in the fsm for the various CEL codes. For the EVAP code, I would run through it.

The others are simply directly related to having the Haltech running the engine on MAP (with a MAF disconnected). They are to be expected and can be disabled via a reflash. Somewhere I posted a list of CEL codes related to fueling that can be disabled via reflash for CEL free operation with the Haltech. Maybe in the big Haltech thread...