A few days back I scanned the beast and noticed how my fuel trims were split to 140 and 126 for the long term trims...

Yesterday I took a look and just by chance I saw part of #1 cylinder injector O-ring had been improperly installed by me.... it had gotten stuck and when I pushed the fuel rail in... it stretched to the point where part of the O-ring seal was stuck outside and the other part inside... It finally gave way obviously, tore up and it was allowing a vacum leak to Number one Cylinder.

I purchased a set of new Injector o-rings and it took me about 15 minutes to replace them.

This time I rubbed them with synthetic grease (the o-rings) and they slid down perfectly without any effort into the intake manifold. I took new readings and the fuel trims went back to 127 and 128.


Just wanted to share my info with you guys.... I was so lucky to look at the injector. Else I would have been pulling my hair off trying to figure it out.


Marvin

 

Yet another example to grease all "O" rings with some sort of grease,not WD not alcohol,but grease.
I prefer 105 white grease on top and bottom and when ya go to remove them they come right out.