ECMlink Phantom knock?

[19gsx91]

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: NGK brand new
Spark Plug brand, type and Gap: NGK-BPR6ES/.024


5). Motor health (Compression Test)
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:

6). Performed basic throttle body adjustments?
Idle Switch: Yes
Throttle Cable: Yes
TPS: Yes
BISS: Yes

7). Compression ratio
7.8:1

8). Any known bad sensors or brittle wiring?
No

9). Any DTC/CEL codes?
No

10). Electrical system
Car off (not running): 12.4 volts
Car running: 13.9 volts

11). Base fuel pressure and injector values
Base Fuel Pressure: 43.7
Injector Size (cc/min): 560

12). Properly calibrated and configured wideband sensor
Sensor Brand:
Calibration Date: No, not hooked up yet.

13). Type of fuel
Type: 93 Octane
Percent of Ethanol: 8%

14). Watched ECMlink how-to videos?
Yes




Got a quick question for you guys.. I picked up a 91 Laser RS 5 speed (its actually my old car) and I've been trying to get it back to normal. pulled the GM maf-t and put a stock 1g maf back on, piping is not re-circ from the bov yet(too cold for me to work on anything). but my question comes from this, under low boost, partial throttle conditions I am showing a lot of knock.. much more so then I believe I should be seeing.

So if you clear it out and check where the knock is.. does that make sense or is it phantom knock?

Thanks guys.

 

[1cleangsx]

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: NGK brand new
Spark Plug brand, type and Gap: NGK-BPR6ES/.024


5). Motor health (Compression Test)
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:

6). Performed basic throttle body adjustments?
Idle Switch: Yes
Throttle Cable: Yes
TPS: Yes
BISS: Yes

7). Compression ratio
7.8:1

8). Any known bad sensors or brittle wiring?
No

9). Any DTC/CEL codes?
No

10). Electrical system
Car off (not running): 12.4 volts
Car running: 13.9 volts

11). Base fuel pressure and injector values
Base Fuel Pressure: 43.7
Injector Size (cc/min): 560

12). Properly calibrated and configured wideband sensor
Sensor Brand:
Calibration Date: No, not hooked up yet.

13). Type of fuel
Type: 93 Octane
Percent of Ethanol: 8%

14). Watched ECMlink how-to videos?
Yes




Got a quick question for you guys.. I picked up a 91 Laser RS 5 speed (its actually my old car) and I've been trying to get it back to normal. pulled the GM maf-t and put a stock 1g maf back on, piping is not re-circ from the bov yet(too cold for me to work on anything). but my question comes from this, under low boost, partial throttle conditions I am showing a lot of knock.. much more so then I believe I should be seeing.

So if you clear it out and check where the knock is.. does that make sense or is it phantom knock?

Thanks guys.

Hi, a few years back when I first got my car it had ecmlink v3 lite and I started getting a good bit of part throttle knock and having timing pulled everywhere, I sent the ecu to ecmtuning and sure the knock was caused by a solder and they fixed it it for free, I understand the car may not have link but I guess I’m saying check the ecu and replace knock sensor

 

[19gsx91]

ECU was just rebuilt by ECMlink when I upgraded from v2 to v3. Good suggestion though

 

[motomattx]

Could be rich knock from the vented bov.

 

[19gsx91]

Well. It's looking like it was a vacuum line connected wrong. This ones on me for not double checking. Previous owner hooked up an AFPR wrong.