I have been fighting a lazy starting burb since IP under warranty change. Also cold starts are very poor. I have gone top to bottom, glow plugs, controller, crank sensor, batteries amd cables, grounds, etc. I have a friend with a Snapon with OBD 1 cards for my burb. It seems that my burb has a 9929 PROM and according to the TSB for this model truck, should have a 9975 PROM. I have a 94 heavy duty engine code.
You pros have any thoughts on this as a problem on lazy and por cold starts? Truck runs good, pulls good, gets good mileage.
Thanks
Buzz