Hi all!
Working on my 944T VEMS project. (no, not the Peep PnP)
It now idles just fine at 800-1000 rpm, checked ign timing with ing strobe light. Fires on the mark.
When car is warm it runs on lambda target. Brand new Bosh LSU 4.9 sensor, calibrated in free air.
I have no idle control mechanism, only throttle body, and it idles in "a vacuum"
EGT sensor, runs at about 5-600'C
Bandaged headers, all the way to the (bigger)turbo, turbo in "bandage daiper" I can barely see the red metal in the cyl 2-3 exhaust joint
But the exhaust headers gets red hot! Registered some back firing as well (pop in the inlet manifold, when throttling)
Oil also smells of gasoline, pretty bad..
Could it be:
a) Normal. Steel will glow at 600'C? Just do a oil change.
b) Back pressure. Clogging in exhaust / turbo not spooling correctly?
c) Running to rich - sensor fail/bad calibration?
d) Running to lean, maybe caused by not getting air/ICV delete?
d) Injector setup fail - burning excess fuel in the exhaust?
e) some thing else i did not think about..
Anyone with ideas?