coug66

Po300 and p1200 codes being thrown.
the car jerks when it a accelerates.
I rest codes but could not get the VCS light to go out. The car drove a little better with the lights on. Then I had these codes above same as before and reset the VCS so no codes but car jerks while accelerating.

I had an issue with the fuel pump. Replaced and it didn't get power or work. I played with the relays and after jumping them got the car to start and run ok.
Repalced the relays but can't explain why it didn't work before?

The car also had a miss earlier while idling but I get a miss fire but not cylinder specific?

When I accelerate on an onramp or pass a car at high speed it jerks as it accelerates. Almost like bad shifting if you kept playing with the clutch on a manual transmission?
This car has ***** when it runs right but this pushing the pedal down and have it jerks as it tries to build rpms is very frustrating.

Any tips where I should look would be helpful!

Thank you,

Ian