[Mk2] [Turbo] Help with Apexi Power FC

[Wobbs]

Hi,
My Tubby is finaly back together, but I have a slight problem with the Apexi Power FC. The ECU seems to be running the fuel mixture way to week, If I try to reduce the injector % to accmodate the new Sard 800cc injectors she wont start. I put a scope meter on the O2 sensor yesterday to try and determin how the mixture was running and thats when it became apparant that she was running way to lean.I glad I havent taken her for a spin! There dosent appear to be any air leaks around the inlet manifold as I getting 3/4Bar vacume. Ive tryed making some adjustments using the Commander but dont seem to be able to richern the mixture. Any help with this problem would be appreciated.
Engine spec below:
Engine:
JE Pistons
Eagle Rods
PCI Cam Belt And Tensioner Kit
Sard 800cc Injectors
GFB Light Weight Crank Shaft Pulley’s
Stainless Steel Fly Wheel
Paddle Clutch Assembly
OEM Oil Pump
OEM Water Pump
Walbro 275Lts / Min Fuel Pump
HKS "Slide" Varner Cam Pulley’s
HKS 264 Inlet Cam
HKS 264 Exhaust Cam
ARP Crankshaft Bolts
ARP Flywheel Bolts
ARP Head Bolts
Comtech Multi Layer Head Gasket
Sytec Motorsport Fuel Filter
Upgraded Fuel System & Fuel Rail
Adjustable Fuel Pressure Regulator + Gauge
Air Impulse Induction System
Large Intercooler & Pipe Work
Stage 2 Fensport Hybrid Turbo
Tubular Exhaust Manifold
3" De-cat Pipe
HKS Hiper Exhaust system
Samco Engine Coolant Hose Kit
Engine Management:
Apexi Power FC + Commander
Apexi Power FC Boost Controller
Rev2 to Rev3 Engine Management Conversion
3Bar MAP Sensor
Air intake temperature sensor
Inlet manifold temperature sensor
Rev3 Ignighter
4 Wire Lamba Sensor

[Wobbs]

Hi,
Dose anybody know of a mobil Apexi mapper in the kent area who would be willing to come to Dartford?

[PFrazier]

Try http://www.2bartuning.com/
Ryan mapped my 92 and it is fantastic.

[Wobbs]

Hi,
Just thought that Id resorect this one to let you guy's know what the problem was causing the Apexi to run so lean.
Its was the new GM boost sensor!
The Apexi ECU assumes that you are using a stock pressure sensor, so where Id fitted the new one, the signal coming back to the ECU was of the wrong ratio, the ECU thought that the engine was on over run all the time and weakening the fuel right off.
I have to give a big THANKS! to RYAN G - You are the MAN.
He spotted the problem stright away and he's just finished installing a base map so I can now run the enging in safley, once run in he's going to MAP her propley.
RYAN, big thanks again mate, cracking job. Cant wait to get her maped fully.
Oh! happy day's.....................