| Re: Spark Knock is back.... and I figured out why... And it's BACK AGAIN!!!! |
Subject: Re: Spark Knock is back.... and I figured out why... And it's BACK AGAIN!!!! by bogus on 2011/10/22 4:22:14 Ok... more tests... more questions... more solutions... 1. did the fuel pressure test. Without the AFPR attached, the pressure was 50; attached, it goes to about 45 or so. Give throttle, rises a few psi, but not a lot. I am not giving the pump a clean bill, but it should have enough pressure to keep things running. 2. When testing, I found that the 2 way check valve was busted. Replaced... MINOR improvement in idle quality, but no silver bullet. 3. Which leads me to a plan to test for vacuum leaks. Everywhere. Ok... it's running LEAN... block learn near 160 = LEAN... and my numbers are in the mid 150s. Not a good sign. |
