Ok.. i now these are stupid questions, and i have already searched and found nothing. I am installing my turbonetics single turbo kit right now, and i have a utech that i going to use for management, so do i need to get my ecu reflashed? I have not sent it off yet , and since it only needs to go from my shop to the dyno, i was wondering if one of the preset base maps would work for my car?has any one tried this yet, or is everyone just waiting until you got the dyno to tune and install it.any feedback would be great, i would love to sell this reflash to some one who can use it ....

 

If I were you I wouldn't get my ecu flashed and just get it only the dyno and tune the utec with the stock ecu. I've been having issues with using the utec and flashed ecu.

 

^^Why-at WOT the UTEC overrides the ECU, makes no sense....

 

No need to flash the ECU since the Utec will have to be tuned either way. Contact Turboxs and they can email you a MAP to help get started Jermaine@turboxs.com

 

I had my ecu flashed prior to adding UTEC. No problems here regarding that relationship.

There have been temperature compensation module issues with UTEC, but I assume that will be ironed out in the next update (which I hope will be windows based).

 

I honestly wish I knew what really was going on, but the car run's fine... a little rich, but fine at wot without the utec in. Then I put it in and occasionally at wot it just dies. Before I flashed the ecu, and just ran it with na, it worked great. Still trying to figure out what's going on, but I think tuning from the stock ecu would be better because I think its a problem between the two....

 

you dont get it, the UTEC has control at that point, the ECU is totally out of the picture.
The way the UTEC works is it takes over control of engine management from the ECU at a specified (programmed) point. With FI you use a MAP sensor and program the UTEC for speed density mode. At the programmed boost level the UTEC takes over from the ECU completely. So if you are having problems with it at WOT then its probably the tune but has nothing to do with the ECU flash.

 

The ECU closes the throttle 10% after a few seconds of WOT (or something to that effect). I don't think that the UTEC "fixes" that. Apart from that there might be a few other things a TS limited flash does and the Utec doesn't...

Danny

 

It sounds like how my TB issue started. Does the car just die, then you turn it on, and you get no throttle response? Or it may die, you restart and its fine, the problem will come and go. Try the TB reset procedures on technosquares webiste and see if it helps. Is the car throwing a code? Have you checked it? Few guys have had this issue now, me included it sucks....could be a bad coincidence you just installed your UTEC and it started, mine started after a turbo install.

 

Yeah, but I tried a bunch of different things but it seems that I only have the problem when the utec is in the car. I even tried using the na map and just taking it slow to see what would happen Then I set all values to ecu and its still the same deal. My tune might be a little off since I'm still learning how to do this all, but I doubt its that. Once I get a log I'll post it up to see if anyone can help....

Hope its not that, I'm going to try that, thanks! It dies after a moment at wot (but only on occasion), has trouble starting for a while, but then is fine after I disconnect and reconnect the battery. It hasn't thrown any codes yet.... I had the utec in first and everything worked great, but after the turbo install, the utec or the ecu started being "screwy".

 

Yeah great idea except he never reponds!

 

well .. hopefully he is as good as reggie as turbonetics ... it took me 3 or 4 calls to finally talk to him, and then i had to vent on him, but he is still agreed to help me out, and the time frame for my overboost pipe shrunk by 5 weeks just by talking to him..... i will skip the reflash and just run a base map from my shop to the dyno .... ill keep you guys updated .. thx for all the info

 

You know you can call... I get 100 email a day. No exaggeration! 301-977-4727

Give me a call during the day with access to the car so we can try and troubleshoot the issue.

Thanks,

Jermaine

 

I had an issue with the DBW in the past, the throttle would act like it wasnt connected.It turned out to be a loose wire in the ECU harness..

 

^^ Wow that sucks, glad mine was a simple TB swap...

 

Didnt suck that bad..A little electrical tape did the trick..lol

 

The only benefit I can see from getting the ECU reflashed is to tune your idle as well as your lower rpms. I have no experience with UTEC's, but I believe they only kick in at WOT, but if you raise the fuel pressure as well as add larger injectors, the car will need to be adjusted to compensate for the changes.

Can someone confirm this?

 

UTEC kicks in at the programmed boost level. Yes you have to tune it for whatever injectors and other mods you have. You dont need the reflash though.