coupe_nasty
10+ Year Contributor
- 266
- 16
- Oct 15, 2011
-
Easton,
Maryland
Recently my car has been smoking under wot and more recently started breaking up under WOT. Seems to be running lean. I checked the plugs and they look slightly light greyish on the tips. I had the car professonally tuned by brad brooks last year and it was running great until now all the sudden. I posted an idle log to see if anything looks unusual. Runs fine as long as im not in boost. looking for any advice? Plugs are NGK bpr8es i believe and both plugs and wires are upgraded and new. walbro 255 pump and fuel lab fpr. fic 850's. fp green. 93 octane.
1). Any boost, vac, or exhaust leaks?
Boost leak tested 5psi above your max boost with no leaks?
2). Verified mechanical timing? yes
3). Verified base timing? yes
4). Ignition system stock
COP or Stock Coil:
Wire brand and Age:
Spark Plug brand, type and Gap:
5). Motor health (Compression Test) good
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:
6). Performed basic throttle body adjustments?
Idle Switch:
Throttle Cable:
TPS:
BISS:
7). Compression ratio
8). Any known bad sensors or brittle wiring?
9). Any DTC/CEL codes?
10). Electrical system
Car off (not running):
Car running:
11). Base fuel pressure and injector values
Base Fuel Pressure:47
Injector Size (cc/min):850
12). Properly calibrated and configured wideband sensor
Sensor Brand:
Calibration Date:
13). Type of fuel
Type:93
Percent of Ethanol:
14). Watched ECMlink how-to videos? yes
1). Any boost, vac, or exhaust leaks?
Boost leak tested 5psi above your max boost with no leaks?
2). Verified mechanical timing? yes
3). Verified base timing? yes
4). Ignition system stock
COP or Stock Coil:
Wire brand and Age:
Spark Plug brand, type and Gap:
5). Motor health (Compression Test) good
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:
6). Performed basic throttle body adjustments?
Idle Switch:
Throttle Cable:
TPS:
BISS:
7). Compression ratio
8). Any known bad sensors or brittle wiring?
9). Any DTC/CEL codes?
10). Electrical system
Car off (not running):
Car running:
11). Base fuel pressure and injector values
Base Fuel Pressure:47
Injector Size (cc/min):850
12). Properly calibrated and configured wideband sensor
Sensor Brand:
Calibration Date:
13). Type of fuel
Type:93
Percent of Ethanol:
14). Watched ECMlink how-to videos? yes
