Odd Track Exige problem.
Okay its been a while since I've been on here, and yes I'm not dead.
Had a problem with my car at Barber this weekend that is perplexing me so going to throw this out there and see what I get. MODS please feel free to move this where you wish.
Did a track day in early spring, last two times out as temps got higher (80's) once in a while in a hard right hand turn the car sputtered then did fine on the strait. Did another track day in late spring and it got worse in the afternoon high (80's) hard RH turn, would stall but restart on the strait. Both weekends the car ran fine in the AM. Last week I cleaned the MAF, air filter and the intake thinking maybe I had some gunk on my MAF.
This weekend first time out, temps (94) got about 7 laps in car died in a hard RH turn, restarted, then sputtered, then died and would not restart. I had to do the walk of shame and be towed in. Pulling on and off the trailer day before it ran fine. Let it sit 45 min to an hour, starts up runs great then when the temps come up it dies in the paddock. I spent about 6 hours yesterday when I could get it to run wiggling wires. Fuel pump wires, kill switch wires, wires to the fuel pump on the kill switch with no luck. Once temps came up it dies. Let it sit an hour it starts fine and loaded it on the trailer.
My first theory was maybe I had water in the fuel it was slinging to the left and going in the pickup. My next theory was maybe it was a dirty MAF but that didn't work either. My new next theory is it definitely seems heat related and I'm wondering if its the fuel pump overheating. I still have the stock fuel pump and I'm wondering if its just dying when it gets hot but have no clue if it has a thermal switch on it. Each time it happened and dies the coolant temps are around 195 to 200. I replaced the thermostat last year with a TRD one. Dash shows no codes at all. O2 sensors are a few years old but if those where going you would think I would throw a code. Car has a BOE torque tune but the software wont allow me to dump the learned memory, thinking it may be octane scaleing, but that's very unlikely. When it runs or doesn't run I still have good manifold pressure coming off the surge tank which is confusing me. Pressure stays good when I try to start it then drops as the relay kicks off as I would expect it should because a successful start didn't occur.
So now where to start? Does this engine have some sort of temp sensor that cuts it off to save the powerplant?
Any and all suggestions greatly appreciated!
2012 Evora 2+0 IPS.
2007 Exige mental track toy.
"Listen up, I ain't Captain Walker. I'm the guy who carries Mr. Dead in his pocket."
"CHARLIE DON'T SURF"