Originally Posted by martysmartie

I would be looking toward the MAP sensor myself, or rather the hose connection to it first, these can come off or split, when this happens they run very rich! Another very important one to keep an eye on is the fuel pressure reg hose, if this comes off you can end up with a meltdown as the engine won't get sufficient fuel!

To be honest I don't think the flash code system is that good as from memory it will only show an error if a sensor is either totally open or closed circuit. It dosen't need the engine running either for the flash code so long as the ECU is powered up, I.E ignition on.

Under no circumstances run the engine with the standard chip, if you have different hardware then it won't run the engine properly.

Martin