stroh
20+ Year Contributor
- 84
- 5
- Oct 17, 2002
-
Freeport,
Illinois
1). Any boost, vac, or exhaust leaks? No
Boost leak tested 5psi above your max boost with no leaks? Yes
2). Verified mechanical timing? Yes
3). Verified base timing? Yes
4). Ignition system
COP or Stock Coil: Stock
Wire brand and Age: 1 year old
Spark Plug brand, type and Gap:
5). Motor health (Compression Test)
Cylinder 1: 160
Cylinder 2:165
Cylinder 3:165
Cylinder 4:160
6). Performed basic throttle body adjustments?
Idle Switch: yes
Throttle Cable: yes
TPS:yes
BISS:yes
7). Compression ratio: 8.5:1
8). Any known bad sensors or brittle wiring? No
9). Any DTC/CEL codes? No
10). Electrical system
Car off (not running):
Car running: Yes
11). Base fuel pressure and injector values
Base Fuel Pressure: 43.5
Injector Size (cc/min): FIC 1650cc
12). Properly calibrated and configured wideband sensor
Sensor Brand: Innovate MTX-L
Calibration Date: July, 23, 2016
13). Type of fuel
Type: 93 octane
Percent of Ethanol:
14). Watched ECMlink how-to videos? yes
I'm having some issues. At idle my car seems fine. All settings are close to what they should be besides the airflow per rev. But my car is a 2.4L with a lot of porting done to the head, 1mm o/s valves, after market intake, and 272 cams. Boostin had originally tuned my car before the new 1650cc injectors and they had my airflowperrev at about 45 at idle. Anyway, I have tried to go for a cruise multiple times and the car seems take shake and sputter every time I try to put any load on it. Once the car gets going it's fine, it's just the acceleration that acts crazy. I've watched my actual wideband gauge and it fluctuates between 13.5-15. So the fuel mixture seems to be where it needs to be for cruising, yet when I look at the log the afratioest seems to be 2-3 points lower than the wideband. I have run the auto SD tool to get some different numbers and it didn't seem to make any difference. Any help would be appreciated. Thanks.
Boost leak tested 5psi above your max boost with no leaks? Yes
2). Verified mechanical timing? Yes
3). Verified base timing? Yes
4). Ignition system
COP or Stock Coil: Stock
Wire brand and Age: 1 year old
Spark Plug brand, type and Gap:
5). Motor health (Compression Test)
Cylinder 1: 160
Cylinder 2:165
Cylinder 3:165
Cylinder 4:160
6). Performed basic throttle body adjustments?
Idle Switch: yes
Throttle Cable: yes
TPS:yes
BISS:yes
7). Compression ratio: 8.5:1
8). Any known bad sensors or brittle wiring? No
9). Any DTC/CEL codes? No
10). Electrical system
Car off (not running):
Car running: Yes
11). Base fuel pressure and injector values
Base Fuel Pressure: 43.5
Injector Size (cc/min): FIC 1650cc
12). Properly calibrated and configured wideband sensor
Sensor Brand: Innovate MTX-L
Calibration Date: July, 23, 2016
13). Type of fuel
Type: 93 octane
Percent of Ethanol:
14). Watched ECMlink how-to videos? yes
I'm having some issues. At idle my car seems fine. All settings are close to what they should be besides the airflow per rev. But my car is a 2.4L with a lot of porting done to the head, 1mm o/s valves, after market intake, and 272 cams. Boostin had originally tuned my car before the new 1650cc injectors and they had my airflowperrev at about 45 at idle. Anyway, I have tried to go for a cruise multiple times and the car seems take shake and sputter every time I try to put any load on it. Once the car gets going it's fine, it's just the acceleration that acts crazy. I've watched my actual wideband gauge and it fluctuates between 13.5-15. So the fuel mixture seems to be where it needs to be for cruising, yet when I look at the log the afratioest seems to be 2-3 points lower than the wideband. I have run the auto SD tool to get some different numbers and it didn't seem to make any difference. Any help would be appreciated. Thanks.
