Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - wet plugs, running rich. need another brain, been staring at car too long

pewpew · 04-05-2013, 03:50 AM

Okay here is my issue:
s13 sr20det
Car is running rich. soaks spark plugs, car wont start.
fuel pressure is at 40lbs (a little low, normally runs 42lbs, but we were trying to lean it out some, just to see if it would help)
when I pull plugs, I am getting spark.
740cc injectors don't leak and have a good conical spray pattern
temperature is 12 C
new o2 sensor
new-er temperature gauges
tps is reading the correct ohms
timing is top dead center, stabbed CAS 3 different times, followed FRsports guide
timing reads 0 degrees at IG on/not running, 3 degrees at cranking
injectors read 5-7% duty at cranking
MAF is reading 450-700 mV at cranking

only sensor that i havent checked is knock.
recently went from 2.5inch IC pipes to 3inch

car started this morning, revved awesome, rough-ish idle
now car wont start at all. cranks, but no fire.

04-05-2013, 03:50 AM	#1
pewpew Leaky Injector Join Date: Aug 2008 Location: salina, ks Age: 39 Posts: 83 Trader Rating: (5)	wet plugs, running rich. need another brain, been staring at car too long Okay here is my issue: s13 sr20det Car is running rich. soaks spark plugs, car wont start. fuel pressure is at 40lbs (a little low, normally runs 42lbs, but we were trying to lean it out some, just to see if it would help) when I pull plugs, I am getting spark. 740cc injectors don't leak and have a good conical spray pattern temperature is 12 C new o2 sensor new-er temperature gauges tps is reading the correct ohms timing is top dead center, stabbed CAS 3 different times, followed FRsports guide timing reads 0 degrees at IG on/not running, 3 degrees at cranking injectors read 5-7% duty at cranking MAF is reading 450-700 mV at cranking only sensor that i havent checked is knock. recently went from 2.5inch IC pipes to 3inch car started this morning, revved awesome, rough-ish idle now car wont start at all. cranks, but no fire. __________________ Don't mix booze and car batteries...it gets expensive, quickly.