BrettS 10 Posted January 26, 2015 Playing with the new jet wash at my d girls house and thought I would blast off some much from around the bay. Been a bit keen and I have got water into the electrics. Got a miss fire now. Haven't had time to investigate. Just quickly popped of leads and dried them. Also sprayed a wd40 around the coil pack. Sometimes it's great and runs sweet others is missing like a good un. My money is coil pack is cracked somewhere. What do you guys reckon Quote Share this post Link to post Share on other sites
Ray1965 10 Posted January 26, 2015 You can check the coil pack for arcing, best way to do this is to spray with a fine water mist on the coil pack and look for any blue arcs. or maybe if you run it for a while upto temp possibly will dry the bay out. Quote Share this post Link to post Share on other sites
VW_OwneR_85 1 Posted January 27, 2015 check MAF sensor also... Quote Share this post Link to post Share on other sites
BrettS 10 Posted January 28, 2015 Had a quick look At work. Couldn't see any arcing on the coilpack, so removed the leads gave them a wipe down. Unplugged the maf and idled fine for around 10-15 secs then revs dropped and cut out. Drove it back home and miss firing as bad as ever under load. Pulled over unplugged the maf and drove back home. No miss fire pulled fine only issue being coming to a stop the revs would drop and cut out. It was doing this occasionally a few weeks back, so I assumed it was the idle control valve would need cleaning. So I. Guessing my maf is goosed. Anyone successfully repaired or cleaned one. Quote Share this post Link to post Share on other sites
seanl82 23 Posted January 28, 2015 If you can get to the element by removing the casing, then you should be able to clean it. I successfully cured one that was seriously bogging down at 3k rpm by cleaning it with electrical contact cleaner and cotton buds. Just be very gentle, and make sure there are no bits left on the element afterward. Quote Share this post Link to post Share on other sites
BrettS 10 Posted January 28, 2015 That's the state of inside of my afm at the moment. Just took it off and then realised I have no contact cleaner so will have to pick some up tommrow. Also noticed the seal is damaged and lifted on the sensor housing. Wondering if I have forced water into the housing itself. The car had had a k&n fitted when I bought the car and I'm still using it now. Air boxes are difficult and expensive to source, but open air filters have a tendency to kill afm. So wondering if this may be a contribution to it Quote Share this post Link to post Share on other sites
seanl82 23 Posted January 28, 2015 If the filter has been over oiled its possible. The newer types are oil-less so much safer. Quote Share this post Link to post Share on other sites
BrettS 10 Posted January 28, 2015 Gave the element a gentle clean with a kitchen towel and a fair bit of muck came off. Swapped the filter over for a un oiled k&n I had knocking about for some 3.0 audi I think. Lesser of two evils. Put it back on the car, and it's driving as it should. No miss fire, pulls great, idle is sticking from time to time and it cut out like it did a few weeks ago, but I put that down to the idle control valve needs cleaning. We will see how it is in the morning, only time will tell if it's sorted it or not Quote Share this post Link to post Share on other sites
BrettS 10 Posted January 29, 2015 No miss fire so far. So may have cured it Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted January 29, 2015 Will have to clean mine when it goes back on. As was having a few issues and it was probably the only thing I didn't check. Nice one for updating the thread. Quote Share this post Link to post Share on other sites
Ray1965 10 Posted January 30, 2015 Glad to hear that it's is sorted, hopefully. :thumbleft: Quote Share this post Link to post Share on other sites
