JPERL
01-31-2020, 11:21 AM
So for months I have been hesitant to just throw a fuel pump at my Van as I am generally not a fan of loading up the parts cannon. I did some more exploration and testing.
The problem was I had extended crank 20-30 seconds when warm and it was not the infamous heat soak because the weather was 50 degrees and the engine was only run a few minutes barely to operating temp and I would encounter extended crank just after a few minutes. Oddly enough the first start of the day was fine but run the engine just 5 to 10 minutes and then if you restarted you would have extended crank again.
Because cold starts were fine, the fuel pump was obviously holding pressure and so that's why I held off.
So last night I took the intake boot off the end of the AFM and with my finger hold the flap all the way open in the AFM and while doing this I crank the engine and it fires up immediately no more extended crank.
What this also proves is that you can operate the engine with the Intake tube disconnected so long as the AFM flap is held open by some means.
The problem was I had extended crank 20-30 seconds when warm and it was not the infamous heat soak because the weather was 50 degrees and the engine was only run a few minutes barely to operating temp and I would encounter extended crank just after a few minutes. Oddly enough the first start of the day was fine but run the engine just 5 to 10 minutes and then if you restarted you would have extended crank again.
Because cold starts were fine, the fuel pump was obviously holding pressure and so that's why I held off.
So last night I took the intake boot off the end of the AFM and with my finger hold the flap all the way open in the AFM and while doing this I crank the engine and it fires up immediately no more extended crank.
What this also proves is that you can operate the engine with the Intake tube disconnected so long as the AFM flap is held open by some means.