Hi! I´m running with phase 3 and I´ve got strange problem....When I am running with full throttle my AFR gauge shows only one led at lean side.It does´t matter if the switch is on position 1 or 5.Everyrything is great before turbo is giving any pressure, mixture is on 4 leds green in normal running, but when I hit even only 0.3 bar pressure mixture goes lean and car is holding back. When I hit the full throttle AFR gauge is 1 led on rich side 2-5 seconds before turbo is giving the pressure.
I´ve got new 909 fuel pump,relay and thicker wires to the pump.Pump is getting 13.9 volt when driving
My fuel pressure gauge shows over 5 bars when full throttle and 1 bar boost and about 4 bars when idle.
New coolant temp sensor (GM part)
New lambda sensor (GM part)
Clean K&N air filter
Silicone hose between turbo and air filter box
Air mass meter has been checked with multimeter.Measuring terminals between 2 and 3, I´ve get 4.3 volt when full throttle.Goes smoothly from 2.2 volt when idle to 4.3 volt when full throttle.
OK...I did the test and disconnect the air mass meter.ECU light was on and I drove and accelerate.Fuelling was then fine, 2 leds lit on the rich side, eventhough I accelerate with full throttle and 1 bar boost.I did that test several times and note that fuelling was ok when I disconnect air mass meter.So could it be the faulty airmass meter anyway????
Problem solved:I changed AMM and everything is fine now.Get 2 red leds at rich side when driving with boost and full throttle.