03 cobra road racer

[bim]

having huge problem.make 3 laps on road course and car goes full lean and shuts off pumps. have dual fpdm and gt pumps. has been dynoed and tuned and still shuts down. any ideas? can drive all day on the street. only happens on track.

 

[98 Saleen Cobra]

What is your setup lol?? 04 Cobra tend to go into limp mode depending on boost/weather etc..

 

[thomas91169]

are you logging this with something?

 

[racebronco2]

having huge problem.make 3 laps on road course and car goes full lean and shuts off pumps. have dual fpdm and gt pumps. has been dynoed and tuned and still shuts down. any ideas? can drive all day on the street. only happens on track.

What is full lean? How do you know it shuts off the pumps? Do you have a datalog we can look at?

 

[01bluesnake]

need more info. Maybe IAT2 setting needs adjusting. May be getting way too hot causing limp mode type issue

 

[stagedz]

Sounds to me like your fpdms are having issues...could be in the wiring...I do have an MDM for sale Brand New on the cheap (see sig line)

seriously though...sounds like FPDM's

 

[MaximumVelocity]

Or a wiggy inertia switch loosing contact under track side loading.

 

[01yellercobra]

What's your duty cycle at WOT? If you're running close to 100% you're probably sending the FPDMs into thermal shut down.

 

[bim]

ported stage 3 blower,sct 2800maf,60 lb. injectors,2.75 pulley,live at 5000ft altitude. duel fpdm,s. I assumed it was the fpdm so wired in duel drivers.It still happened. I have not data logged the event when it happens. It set a fault which was boost too high the last time out. air /fuel ratio went to 20-1 and i shut down.It fried the left cat converter,the time before and it now has straight pipes from headers to bassani exhaust.

 

[98 Saleen Cobra]

Who tuned the car?!

 

[01bluesnake]

ported stage 3 blower,sct 2800maf,60 lb. injectors,2.75 pulley,live at 5000ft altitude. duel fpdm,s. I assumed it was the fpdm so wired in duel drivers.It still happened. I have not data logged the event when it happens. It set a fault which was boost too high the last time out. air /fuel ratio went to 20-1 and i shut down.It fried the left cat converter,the time before and it now has straight pipes from headers to bassani exhaust.

You shouldn't throw a over boost code, sounds as though the tune needs adjusting. If you are tossing that code, then i wouldn't doubt its shutting down from high IAT2 temps either. I would recommend to do some street driving and log boost pressure and IAT2. Also make sure your intercooler pump is working and flowing enough.

 

[bim]

You shouldn't throw a over boost code, sounds as though the tune needs adjusting. If you are tossing that code, then i wouldn't doubt its shutting down from high IAT2 temps either. I would recommend to do some street driving and log boost pressure and IAT2. Also make sure your intercooler pump is working and flowing enough.

Has brand new afco duel row intercooler and pump but will check iat temp. thanks. all suggestions are welcome at this point.