I'm dialing in a chip for a new engine, using the 7747 and I'm getting a the flag "DRP occured" as well as intermittent "Rich" flag. What the hell does the DRP occured mean?

Thanks....

 

You spilled water on the chip (DRiP)? LOL, had to.

 

The best I could gather it stands for "Distributor Reference Pulse". The drp is what instructs the injectors to pulse in sync. That may give you a heads up on what the problem may be. Do a search and you should find many topics on the subject. I read that sometimes you may get this code and it is just letting you know its working properly so it may just be showing everything is fine.

 

The intermittent Rich flag is okay also. It should toggle back and forth. Your computer is continuously making adjustments based on the O2 sensor readings. So, it will toggle back like that. If it stays on or stays off then there is a problem. What are you BLM's?

 

Ok, so what I'm hearing is that the DRP thing most likely isn't a concern since it's basically running smooth as glass. Also sounds like the flashing rich flag is a completely normal thing as well. I haven't had the chance to drive the vehicle yet, so I've only gotten BLM's in two cells. Breaking in the camshaft gave me a BLM of about 120 @2000rpm/~38kPa and at idle a BLM of about 140 @ 800rpm/~31kPa. I can see already though that I'm going to need to be making some adjustments to the fuel map

 

you guys rock. You answered my question. my closed loop flag comes on and off is it susposed to.