plainandsimpo

Mods s4 t2
Fuel : walbro pump,aromotive fpr ,750 pri/1200sec
Air : Fd uim with rpm adapter,fmic ,bar stage 4,racing beat full exhaust
Electronics : power fc with commander no data legit, fd tps,3 bar gm map,arm wideband. Boost gauge. Alt relocated.
All emission equipment removed . Also removed all the wires from original harness.

Here's the situation. ive finally got some time to actually work it .finishing up the install for the pfc. Started the car or the first time with PFC few weeks ago. Did the whole learning idle thing and could never get it to idle like it did with rtek 2.1 at 9-1k ..so I left it alone until this weekend. Tried to start her .she fired up as usually went to 1.5k and slowly fell to 0 ..tried it again did the same thing. Thought it was fuel but pressure stays at 38-40 fine. Pulled the clips off primaries and they have signal.
Thought it was tps so I re-adjust it again to spec ...vta1 is at .42v and vta2 is at 1.01
Spark is also there.
I have my injectors set at 750 and 1200 sequential turbo turned off and 02 feedback off ..and datalogit coming in the mail. But just wondering if anyone here has input on the situation. I can keep the car running if I feather the gas pedal .. But if I hold the gas pedal half way down the idle doesn't go past 3k and falls to about 1500 and back up the 2500 for a few times and it'll stall.. It fires up with out me having to play with the gas pedal ,but just won't hold idle .. And also back fires a few times before it stalls if I give it throttle .also in sensor check screen I have ntr hwl apr and cal highlighted
Pim :1.59. Ignt Ld -25
Vta1:0.42. ignt tr -25
Vta2:1.01. Boost -432 Ming
Vmop:0.00
Wrtr:2.20
Airt:2.50
Fuel:4.98
02s0.00

Banzai-Racing

iTrader: (11)

You don't have the 3 bar map sensor set up properly. You need the datalogit to change the settings

You have the map sensor on normal which is the calibration for the stock FD sensor

plainandsimpo

Ok,thanks for your help again banzai. I'll just wait till the the datalogit come .. The PFC for my uncs fd is working great ..I've just got around to working on the PFC you guys supplied for the me for the fc ..

plainandsimpo

Also how can you tell if the cause is the map sensor map not loaded ..I've read on your other post is because of the boost reading is way off ..what should be the ideal boost reading and what's not thanks

Banzai-Racing

iTrader: (11)

A reading closer to 0, you can't have a reading of -432 vacuum with the car not running. The actual reading will vary depending on elevation, we are at 900 ft above sea level so with correct calibration the vacuum not running is -49