mike294 0 Posted February 12, 2017 Report Share Posted February 12, 2017 Hey guys so I recently picked up a 1999 vr6 Jetta. Was driving it home from about 6 hours away, stopped and turned it off for about 10 minutes and when I went to go get back on the highway it was misfiring like crazy but I couldn't turn back to where I got it at that point. Fast forward to now, o have a new coil pack in it, new plug wires and cleaned all the plugs up. Me and some others had a theory the cat was plugged since it had gotten red hot from the misfires and there seemed to be lots of back pressure not allowing it to idle for more than a couple seconds and it looked like exhaust gas was coming out from the joints behind the engine. We've now removed he cat and it idles longer but not good. The idle is rough with lots of misfires still. As soon as I touch the throttle it dies. Previously had the following codes P0300P0305P0303P1128 came up twice on the same scan P0302 Any one know what could be causing my issues at this point? Replaced the components that would be expected to be the cause I.e. The coil pack. Any and all help appreciated Link to post Share on other sites
noggin 29 Posted February 14, 2017 Report Share Posted February 14, 2017 Could be the lambda sender. I had same thing on my old vr. I drove for two miles and the cat was glowing red. The car was popping and farting, so it sounds like similar symptoms. Link to post Share on other sites
Philly-R6 28 Posted February 14, 2017 Report Share Posted February 14, 2017 The fault codes are closely related, so one fix could clear the lot! The Ross Tech wiki has some causes/solutions which you could investigate further: P1128 - Fuel Trim; Bank 1 (Mult): System too Lean http://wiki.ross-tech.com/wiki/index.php/17536/P1128/004392 P0300 - Random/Multiple Cylinder Misfire Detectedhttp://wiki.ross-tech.com/wiki/index.php/16684/P0300/000768 P0302 - Cylinder 2 misfire P0303 - Cylinder 3 misfire P0305 - Cylinder 5 misfire Link to post Share on other sites
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