01-04-2016, 10:13 PM
Hello and welcome!
The EGR surly can case pinging. when dead.
no scan tool to see what's Up DOc.?
use the full scan, of all PIDS, using a real scan tool,not just a code reader.
hot idle engine:
ECT reads live at 180F holding? 82C. or more if running hotter STAT.
in closed loop at idle? stated in scans it does.
02 sensor swings nice,?
LTFT near minus 5% not -40 or +40%?
#4 exhaust header tube not cracked, (under shield)
121's are real if it repeats.
when you manually cycle the EGR main, the engine must drop; from 800 normal hot RPM to 400 or stall. did it, if yes, the egr paths are ok. (this car is mono port, just 1 path)
that maf test implies its too lean, normal.
so it bogging below 1/2 throttle (says lean)
low fuel pressure,? FPR bad,?
put back maf, and remove o2 sensor, (unplug it) change symptoms. if yes, look for exh. leak near 02.
are you subject to smog testing, MOT or what ever? it is called there.?
cheers and happy new year
.
The EGR surly can case pinging. when dead.
no scan tool to see what's Up DOc.?
use the full scan, of all PIDS, using a real scan tool,not just a code reader.
hot idle engine:
ECT reads live at 180F holding? 82C. or more if running hotter STAT.
in closed loop at idle? stated in scans it does.
02 sensor swings nice,?
LTFT near minus 5% not -40 or +40%?
#4 exhaust header tube not cracked, (under shield)
121's are real if it repeats.
when you manually cycle the EGR main, the engine must drop; from 800 normal hot RPM to 400 or stall. did it, if yes, the egr paths are ok. (this car is mono port, just 1 path)
that maf test implies its too lean, normal.
so it bogging below 1/2 throttle (says lean)
low fuel pressure,? FPR bad,?
put back maf, and remove o2 sensor, (unplug it) change symptoms. if yes, look for exh. leak near 02.
are you subject to smog testing, MOT or what ever? it is called there.?
cheers and happy new year
.
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