Ok ive sent the ECU back to haltech and they diagnose it as good. So heres the problem:

normal driving without boost drives fine, no hesitation or anything. soon as i hit boost (which doesnt take much with the .81 hotside of the t74 turbo) it starts to frag up and fall apart occasionally catching back up with itself.

does this seem like a map sensor (try a different nipple maybe) issue?
perhaps the boost portion of the map is still way too rich?

when it breaks up it smells like gas like if the ignition stopped firing but the injectors didnt.. maybe a bad battery to chassis ground?

 

Sounds like it, are you tuning with a wideband or by ear? Also, is your map sensor working right?

 

ya the map sensor reads fine per the haltech display and im tuning with a wideband

 

well i added a ground from battery to block, no help there. this is irritating. if i do a datalog of what its doing think anyone can disect the problem?

 

Does you tach jump around at all when this breakup happens?

Go ahead a post a datalog. Always useful...

 

nope, tach is solid oddly enuff. my other question is my crank angle and tooth offset are 78/3 respectively.. what would it be at say 5 or 11 to lower the # from 78? i heard awhile back that sometimes the haltechs have an issue when the trigger angle and timing are above a certain number problems arise.. but like i said, when i get higher up in the RPMS (less timing) it cleans up and doesnt do it as bad.. so to me this is sounding like a timing/ignition problem?

 

anyone paying attention? no haltech users anymore?

 

Did Haltech's tech support dept have any suggestions?

 

My trigger angle is at 75...my friends at 78. Tooth Offset 11.
No problems for either of us.

My main ignition related issue with the X was due to the trigger gains being much too high. Runs perfect at '0'.

 

what symptoms were u having with the high trigger gains?

 

Tach needly jumping around, even at idle.

At around 4k, the car would suddenly hesitate. It would show up as strange rpm jumps in the datalogs.

 

i think i may have fixed the issue.. but i wont know for sure until later tonite or friday when i install the new radiator. seems the jump between before stage and after stage bar was too much for the algorithm to be of good effect until i drop the injector time way down as to give it a better medium (was still injecting too much gas causing it to flood out essentially). also turned the motronic filtering up to 2 and the rpms seem alot smoother

 

Yep. I run with Motronic on 2, and gains both at '0'. You always want the lowest gain possible that still achieves a clean signal.

Are you staging at bar 12? Some people stretch it out a bit longer to bar 13, or even 14, to smooth the transition.