Will look at those items again. No CEL on. It was a few times and replaced MAF and reset and check engine lights have been off since. Throttle body was cleaned few weeks ago. just replaced the idle air control valve. Dealership did fuel pressure test few times when was in shop and said was fuel pump so bought new from autozone. I am confused about fuel pump resistor. I have read it doesn't exist. Is it part of the fuel pump assembly?