Misfire after head gasket job

[Dan Klibaner]

Just had my buddy replace my head gaskets after a leak.

It was throwing TPS sensor a code and idling rough.
Drove for about 1.5 hours in order to get the part and get home to fix it.
Replaced tps and connector. Which fixed the codes.

Drove for 15 min and the rough idle was still fixed.

Next morning found the rough idle was back.

Drove 1hour to work to find a pending cylinder 5 misfire code.

Cleared the codes now throwing cylinder 6 misfire at idle in park.

Erving at 2000 rpm throws the 0300 ransom cylinder misfire.

Checked wires and coil pack and for vacuum leaks.

It Is now back to cylinder 5 misfire.

IDK that I should drive home like this and then back to work tomorrow. Is there anything I can easily check or fix while at work with only a socket set and leatherman?

 

[Dan Klibaner]

Misfire was caused by loose plugs. They must have vibrated loose from the rough idle whice is still presesnt. See attached for all the values that my scanner can pull.

Any help or advise is greatly appreciated.

 

[1998Exploder]

Do you have a K&N filter? If so, get MAF cleaner and spray it down good. See if that solves the rough idle. Also, check your spark plug gap.

If that doesn't solve it, run it for a few days and see which code(s) are thrown. A P0171/P0174 takes time to trigger. Those codes indicate a vacuum leak.