Put the new wires in last night and no difference. Does anyone else have any suggestions?

I'm on my second fill up w/ premium fuel and a cleaner. New plugs and wires. New oil and filter. Ran seafoam through the vacuum lines.

It's got the same symptoms it has the whole time. It runs fine until it hits a certain point then it really cuts out and starts missing and sputtering. After I let off the gas, and put it back on it goes away and pulls through fine.

 

just to recap. you put the 8mm magnecors and bosch +4 plat plugs in, new oil, oil filter, air filter? fuel filter? and you are still getting the misfire error codes and its still running rough at certain intervals?

 

Magnecore wires, Champion OE plugs, new oil and oil filter, two tanks of 93 w/ fuel injector cleaner, seafoam through the intake.

I just ordered this morning a fuel filter, air filter, PCV kit, a coolant sensor, and some gaskets to fix that exhaust leak.

 

This morning I changed the fuel filter and air filter. The fuel filter poured out muddy looking fuel from the intake side. It had lots of small black particles. The outlet side of the filter was putting clean looking gas through.

I thought it was running better but once I got up to speed it still was acting up. Hopefully the coolant sensor will fix the issue. I probably won't receive it in the mail until Monday so I guess we'll see then.

 

in the mean time continue to put high test dont go below 91 octane.

 

So time for an update. I put the new coolant sensor on Monday evening. When I did this, I also changed out those leaking exhaust gaskets. Unfortunately broke off two studs in the passenger side down pipe flange. So it took me a couple days to get that fixed and got it back together last night.

It runs just as bad...possibly worse. It never gave me any trouble at idle until now. It still does the same thing at different speeds when under load - just cuts out then back in. But now it idles rough at times and sometimes stalls. I also see my speedo bouncing like crazy sometimes at an idle.

I've done some digging around and I'm wondering if the issue could be a bad VSS? Any thoughts from you guys??

 

Yes. VSS.

 

Whats a VSS??

 

VSS is a Vehicle Speed Sensor. I guess I will order one unless anyone else has any ideas. I hate to keep throwing parts ($$) at it...but I guess sometimes that's the nature of the beast.

 

see if you can get one from a pick a pull as a test. so you don't throw money away.