Hello,

New to the forum, and I've got a mystery to share with you. I have a '99 Isuzu Trooper. Love the thing, even though it burns oil like crazy. Synthetic isn't cheap, and I put about a qt in every two weeks. When I first got it, I had to clean out the EGR ports and I replaced the EGR. Has ran fine since. Then, the following:
Symptom: Running terrible, and dying at stop signs.
Diagnostics: PO101 (MAF); PO122 and PO123 (TPS); PO153; PO401 and PO405 (assuming intake manifold gasket); PO452 (Evap?).
Mystery: As I'm preparing to clean the MAF and EGR port and EGR; replace TPS; replace intake manifold gasket someone accidently pushed the Power Drive button and it now runs like a champ.

Any thoughts?

Thanks!

 

That doesn't make sense, all the power button does is change shift points of the trans.
Have you cleared the codes to see if they come back?

 

I'll give clearing the codes a try.

 

I am having the exact same issue my Power drive light is always on but the button is not activated?

and also when i drive up steep on bitumen it tends hold in gear as long as it can, thus slow

any ideas?