Engine starts, then immediately dies. Was running perfect before, but was doing some routine maintenance. The IACV valve was filthy, so I suspect that is what I messed up. I used MAF cleaner for the MAF, but regular Throttle body cleaner for the rest. Did the throttle body cleaner do something to the IACV valve or is there something else I'm missing here? Thanks! BTW, I have an '04 Disco II, 4.6L

 

BTW, I have an '04 Disco II, 4.6L

 

A MAF is a MAF on whatever engine, diesel or petrol. If it's been cleaned 9 out of 10 times it's permanently ruined and needs to be replaced.

 

I just had this issue on my D1. Mine turned out to be a faulty battery so maybe give that a shot.

EDIT: Just saw your other post.