Random Cut out under WOT

[Sinclair159]

Today I was Doing some runs to mess with my maft... and after i got all the base runs and things set i went on into setting the WOT settings... i was watching my logger as i was running threw third gear everything was normal about 16 to 19 degrees of timing, .83 o2 reading and only a couple counts of knock but then my injectors were running at 102 to almost 120%.. it felt like i hit a wall.. the car popped and stopped accelerating.. it would do it only under wot.. it pulled hard under partial throttle.. i dont member every having this problem before and ive been running 15-18psi for a while now.. what could be causing this??
I this case would i need to lean out the setting or should i be making it more rich?? WTF

 

[Sinclair159]

also after reviewing some logs my tps% is never over 70%??? Could this cause the ecu to do something funny with the fuel??

 

[v8killer]

bad tps maybe ? i have had my tps plug back off and get loose causing the same thing !

 

[spyderturbo007]

I would adjust the TPS, but technically, if you're seeing a steady O2 voltage the ECU has entered open loop. It does use the TPS value in it's fuel delivery calculation, but I don't know enough about the programming to tell you what side effects a mis-adjusted TPS would cause.

Have you done a boost leak test lately?

 

[jrohner]

i dont member every having this problem before and ive been running 15-18psi for a while now.. what could be causing this??
I this case would i need to lean out the setting or should i be making it more rich?? WTF

I think anything past 15 is pushing it unless you pull a little timing out, especially if you're on stock injectors.

 

[blazinglaser_90]

yea if your using stock injectors sounds like fuel cut to me