Misfire codes again!!
 

Hello all, I had my HPFP changed a few years ago at the dealership after misfire codes. Over the weekend it started again while driving home. Engine light, low power, sputtering etc.....has anyone had this happen AFTER having their HPFP replaced?

When I lost my HPFP I had misfires across all banks, verified by my code reader. Do you have a code reader? Pull the codes, you might have a bad coil.
I lost coils at different times but acted differently.
1st time I had a stumble even after clearing the codes,
2nd time clear the code and it ran perfectly until I gave it a heavy load quickly

I'm having misfire issues as well. I had all 4 coils need to be replaced a year ago, now I've had to replace 2 of those coils and I still have misfire problems after the replacement. I had my HPFP replaced a few months ago under warranty. I am replacing my plugs this weekend to see if that clears it up.

This constant misfire issue under heavy load over the last year has worn me down, I am getting rid of this car as soon as I can.