VR6CABBS 1,311 Posted February 7, 2015 Report Share Posted February 7, 2015 Evening you VR nuts... I fitted a jetex decat on my car last week with no issues.Fired her up and she was spot on. No leaks. Took her for a run. All was good. A nice note coming from the exhaust. This weeks a different matter though. On start-up she is misfiring her tits off. Sounds like she's running on three.After a short while it clears and she's ok. Had it on vag-com and shows no faults or issues. I'm wondering if the lambada sensor cant take it on start up?? If I add a Lambada spacer do any of you guys think this will cure it? Bealieboy 1 Link to post Share on other sites
Mk3highline 287 Posted February 7, 2015 Report Share Posted February 7, 2015 Lambda don't work/used till engine come up to temp?Scrap car and start again mistline and Bealieboy 2 Link to post Share on other sites
Bealieboy 1,625 Posted February 7, 2015 Report Share Posted February 7, 2015 Oh right! It runs closed loop till up to temp then runs off the sensors. What can cause a misfire on cold map then? Coil pack or leads maybe? Link to post Share on other sites
Mk3highline 287 Posted February 7, 2015 Report Share Posted February 7, 2015 I'm guessing here First thing in the morning before you start the car check outside temp and compare it to the temp on the coolant and inlet air temp sensor via vagcomm Check spark plugs leads and coil pack as already said Link to post Share on other sites
Mk3highline 287 Posted February 7, 2015 Report Share Posted February 7, 2015 To see if coolant temp sensor is ok Link to post Share on other sites
VR6CABBS 1,311 Posted February 7, 2015 Author Report Share Posted February 7, 2015 Coil packs were all new when I got it. Magnacor leads new aswell. Nothing comes up when plugged in. Kept in heated garage at work. Only happened since I changed to decat. My pal said to use a lambada spacer as the sensor is to far in the decat hence all the fumes on start up. I've ordered one anyway. Let's hope it does the trick. Bealieboy 1 Link to post Share on other sites
Bealieboy 1,625 Posted February 7, 2015 Report Share Posted February 7, 2015 (edited) I hope that cures it cabbs. Sometimes that blue temp sensor goes tits up though, it surely wouldn't with such a low Mike car though! Edited February 7, 2015 by Bealieboy Link to post Share on other sites
Mk3highline 287 Posted February 9, 2015 Report Share Posted February 9, 2015 I'd like to see this low miles vr stored in a heated garageHow much louder did your car get with the decat? Link to post Share on other sites
VR6CABBS 1,311 Posted February 10, 2015 Author Report Share Posted February 10, 2015 I'd like to see this low miles vr stored in a heated garageHow much louder did your car get with the decat?Not a great deal to be fair mate but it had a catback miltek on before I fitted the decat. Link to post Share on other sites
Mk3highline 287 Posted February 11, 2015 Report Share Posted February 11, 2015 I'm thinking of a decat but I'm wanting to get it quieter from the exhaust sideI got a scorpion cat back with 2 boxes Link to post Share on other sites
Bealieboy 1,625 Posted February 11, 2015 Report Share Posted February 11, 2015 I'm thinking of a decat but I'm wanting to get it quieter from the exhaust sideI got a scorpion cat back with 2 boxesA decat doesn't particularly make a 2 box system louder in normal driving, it's a different story on full chat. My magnex and decat is pretty reasonable at 70mph Link to post Share on other sites
Mk3highline 287 Posted February 12, 2015 Report Share Posted February 12, 2015 Mine is quiet at 70mph just little road noiseIt's at 50mph I got a drone which bugs me in my old age Bealieboy 1 Link to post Share on other sites
Bealieboy 1,625 Posted February 12, 2015 Report Share Posted February 12, 2015 Mine is quiet at 70mph just little road noiseIt's at 50mph I got a drone which bugs me in my old ageI suffer from old age but not from droning exhaust. Have you tried changing gear earlier/ later or turning the sound system up? All jokes aside, I don't think a decat will make that much difference to your hearing. You do get a nice burble on lift off with a decat though. Link to post Share on other sites
Mk3highline 287 Posted February 12, 2015 Report Share Posted February 12, 2015 I was going to go nuts on the stereo side but going 24v seemed quicker lolWill see if I can get a silenced decat made Cheers What I did do once was stuff a tea towel in one of the tail pipes which made it quiet but popped out lol Bealieboy 1 Link to post Share on other sites
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