7747-6299 differences

[jim_in_dorris]

Not trying to lecture you on smog rules James, I know you know them well, just trying to answer the question. The answer seems to be based on weight and california or federal build (but then again I have been wrong before) ASDU comes back as a Federal prom. I also think that about then ( 91 gmt-400 trucks) is when they started doing away with smog pumps and just using diverter valves.

115 does seem really rich at idle. This is going in your Burb right? What size injectors are you running, and how much have you tweeked the prom?

[jameslleary]

Not trying to lecture you on smog rules James, I know you know them well, just trying to answer the question. The answer seems to be based on weight and california or federal build (but then again I have been wrong before) ASDU comes back as a Federal prom. I also think that about then ( 91 gmt-400 trucks) is when they started doing away with smog pumps and just using diverter valves.

115 does seem really rich at idle. This is going in your Burb right? What size injectors are you running, and how much have you tweeked the prom?

Nah, I know you know Jim...LOL!
I am running the stock 55pph, stock chip. I do have a supersucker throttle body spacer, and my fuel pressure is at 13 psi.
Exhaust is all new, single cat, 3" walker quietfolow system, new manifolds. The spray pattern looks good on the injectors, but I may still send them out to witch hunter at some point for some freshening up.Going as factory as possible, save for the spacer.
I did post a datalog on my Target Idle thread...on the iPad right now, or I would post it here.
ASDU seems to be the only Bin I can find, is there a specific one for California?
Also looking for a diverter valve if anybody has one in the junk pile...just incase I need to put the AIR pump back on.

[jim_in_dorris]

here is the link to the 7747 BCC's with some of the california BCC's

http://www.gearhead-efi.com/Fuel-Inj...Information-42

[EagleMark]

If your going to mail injectors look at Mr Injector, he has a banner ad here. His shop is up the street from me and does fine work! Less then others...
http://www.mrinjector.us/

I'll take a look at your log in AM.

[Tunedperformance]

The 747 is a direct plug and play replacement for the 299 I did the swap on my 92 k1500 more than 10 years ago. I still have the 299 I need move to a good home.