Recent I had Pacesetter LT's installed, everything is peachy I run it for a week and nothing is wrong, I port my MAF sensor, run it for 2 days nothing is wrong... I refill my tank with 93 octane but I use a product called Jet Fuel, suppositally cleans injectors, After about a half a day I get a really bad knocking outta cylinder 1. I figured okay maybe he routed the wires wrong and they're arching to the headers and not getting spark to the cylinder, I check.. nothing.. I check the plugs.. nothing.. still bad knocking, I look at my oil that I just changed thinking the place that changed it put something too thin in, so I put a 15-50 syn blend in and changed the filter, nothign changed. I happened to remove the cap from my EGR port on my headers and there was a blue flame coming from this #1 cylinder. I have bad hesitation sometimes and sometimes it'll even die at idle, like the computer doesn't catch it and bring it up to 1000rpm(on gauge) Also, if I let it idle for a while and it warms up, the idle randomly changes, it'll go up to 1200 for a sec, then down to 800 then level out to 1000. I'm really lost as to what the problem is. If ANYONE could help I would greatly appretiate it. Thanks.

 

TTT

 

Anyone?

 

How could you know it's knocking from a single cylinder? If it's knocking, is it retarding spark? How could it run correctly with a ported MAF if it's not been reprogrammed for it? When you used that chemical, did you pull the O2's first? Do you still have cats? What did the chemical do to them if you do? What about fuel enrichment tables, have they been changed?

Sorry but I have too many questions to give you any answers.

 

Nevermind it threw the rod this morning on the way to go get it checked out, right through the oil pan >.<