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.

 

Do you have a wideband and fuel reg.

 

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.

 

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.

 

Why have you got pumps switching on at different times?

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