stickmantijuana

iTrader: (1)

Hello all,

Can someone share their 20b microtech map?

I'm currently using stickied TII base map, and my car runs and drives, but she has lot of hiccups. Most notably, I can't get my AFR down in idle without car being shut off. My duty cycle for injector in vacuum at idle is like 0.9-1.1. Steve Kan looked at it and he said it should be in the 4's with 900cc injectors.

I have Microtech LT16 with MSD coils. Spark plugs are brand new (I just changed them). I'm running FIC 900cc primaries and FIC 1800cc (2 x 900cc batch per rotor) secondaries. My fuel system is currently being worked on, and it consists of one OEM pump to 2 gal swirl pot, then 2 x 044 Bosch pumps. One 044 is constantly on, and the other 044 is only on above 5psi. My fuel pressure at idle & cruise with one 044 on is always around 50-70psi. When I turn both on, it goes over 110psi (my gauge only reads upto 110psi). I'm pre-mixing with 2 cycle oil.

Engine is street ported with brand new 13b housings and rotors, has short lower intake manifold, gutted stock upper intake manifold, and FD throttle body.

rx3sum

Do you have a wideband and fuel reg.

stickmantijuana

iTrader: (1)

yea I have AEM wideband and aeromotive FPR. My fuel pressure was high despite opening FPR to the max, so I'm increasing my return line to AN-8 to the swirl pot. It originally was returning via stock 5/16 line to even more restrictive opening into the OEM plastic can. I should have that issue solved in a couple weeks.

rx3sum

I doubt you can tune it with fuel pressure all over the place.need to get around 42 psi static.Has the fuel setup ever been around there or is it a new install.

rx72c

iTrader: (8)

Why have you got pumps switching on at different times?

Power them both on and set fuel pressure at 80psi.