Hi All,
New to SAU. Excuse my limited knowledge for future reference.
I recently purchased a N/A r33 S1.5 (s2 management) with intentions to go down the forced induction path.
I purchased a Rb25det s1 engine,loom and ecu. I installed the engine trouble free but had a few electrical bugs, using the s1 management I can not get injector or coil pulse. I've tried multiple CAS with no luck and have narrowed it down to no power to the Ecu.
I then tried using the N/A s2 ecu,loom and plenum with all n/a sensors.
(Of course changing coil packs,tps and afm)
The car started and idled fine but run like shit on boost.
I changed to a S2t ecu,fuel pump and adjustable FPR
The car run what I thought was perfect.
After a small drive I've found it runs VERY rich @ idle and VERY lean on boost >4000rpm roughly
It's like the Ecu is not recognising "boost"
So this is where I am at now:
S1.5 car
S2det Ecu (only 1 relay next to ecu)
S2 N/A loom
S2 N/A afm
S2 N/A plenum and sensors
Det injectiors
Adjustable FPR @ 30psi- I've noticed a lot of fluctuations in pressure- some days 10psi some days 35????
S2 coil packs
S2 Tps and TB
Walbro 225lph
Boost T @10psi
So to me I belive there are no ways the car can sense boost since I do not run a boost solenoid using n/a loom?
The car will get up and go ok but feels to have no torque. It's just all noise.
I come back off the track with a glowing turbo.
The car will idle insanely rich to the point where the plugs fowl after 2 mins of idle @800rpm
The car will run amazing and pull well sometimes but very moody on when.
Also wondering if it's my fuel pressure fluctuating?
Let me know any troubleshooting ideas anyway guys and girls!
Look forward to joining the SAU community.
Max.