Engine stumbles and misses after heat soak

[rgb133]

Not too worried. . But 03 cobra, after running heat soak, shut the engine off. Sits for 5 or so minutes. engine runs bad at restart for about 5-6 seconds. Misses and then smoothes out. Anyone seen this before? By the way stage 2 eaton port, frps just replaced. Twin gt pumps.

 

[MG0h3]

When I first saw the title, I was going to suggest the coils. But since it clears up right away you might have a leaky injector.

Tough to diagnose since it goes away so quickly.

 

[rgb133]

It has a p0148, but not sure if that's from the frps. Ill log fuel pressures tomorrow, see what it does. I erased the code too. P0148 is fuel delivery related. .

 

[rgb133]

So 39 psi ... 45 mile drive to work it didn't fluctuate much

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