Exhaust leak affecting AFR/ Wideband?
07-16-2011, 11:03 PM
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Exhaust leak affecting AFR/ Wideband?
Sooo I got some new headers put on and needless to say there is a leak at the gasket between the downpipe and header. Anyway today I noticed that my Wideband was pretty much stuck at around 14.7-14.8 even at WOT. It has never done this before. I am catless, and parts have less that 2000 miles on them. I was wondering if this leak could be affecting the AFR or the wideband gauge.
07-17-2011, 08:54 PM
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It didn't start doing this until the badmab was put on. I was thinking it had to do with me not being tuned for a 3" header or the leak between the header/dp. But as stated it is like stuck. I mean it will move from 14.7-14.8 and thats about it. And even at WOT it still reads 14.7. This pisses me off. Nothing seems to be right with this car. I have the AEM wb as well
07-18-2011, 07:29 AM
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It didn't start doing this until the badmab was put on. I was thinking it had to do with me not being tuned for a 3" header or the leak between the header/dp. But as stated it is like stuck. I mean it will move from 14.7-14.8 and thats about it. And even at WOT it still reads 14.7. This pisses me off. Nothing seems to be right with this car. I have the AEM wb as well
9 times outta 10 people that claim exhaust leaks never re-tighten the bolts after running the car a few times.
07-18-2011, 06:41 PM
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I double checked the power and ground. Both seem to be good. So I think I have to narrow it to the leak between the header and DP. I still dont know how it would cause things to stay at around 14.7-14.8 though. No idea.Im lost. If its not the leak ill be a little mad because this gauge is almost brand new. What did you all ground your widebands to?
07-18-2011, 09:02 PM
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i ground mine to the bolt to the right of the fuse box i think it was already being used as a ground so i just loosend it and stuck the wire under and tightend back up
07-18-2011, 10:30 PM
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FML still got the issue. I think my car is cursed... hopefully going to get the exhaust leak fixed here soon. Just need to get some ramps and should be good to work on it. I hope the leak is it. If not I am driving my car off the nearest cliff if anyone wants to chase it down for parts.
07-19-2011, 12:19 AM
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07-19-2011, 05:09 PM
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Test the O2 sensor?? that thing is brand new! Like I said I have less that 3k miles on the dang thing. (The wideband)
07-19-2011, 05:11 PM
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Well it worked perfectly fine before the header was put on. I don't get it. It was fine and never gave me any trouble then all the sudden after the header, BAM it starts screwing up. Idk, ill figure it out. It really is one thing after another with this car...
07-19-2011, 08:07 PM
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thats part of modding man. but i was the one that put the header on. the header was nice and tight. we tried for damn near 3 hours to get the 3 collector bolts tight as hell but the leak wouldn't stop no matter what. tried a zzp gasket didn't work tried the badmab gasket still didn't work. it's leaking like crazy on the bottom of the collector and i really don't know why because on the stock header to the catless downpipe it was fine.
07-19-2011, 08:10 PM
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yeah i know it will affect it but it wouldnt affect it like this it would still change up and down i guarentee a bad connection or somthing with the gauge or o2 is messed up it would not stay a constant ratio
07-19-2011, 08:21 PM
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thats part of modding man. but i was the one that put the header on. the header was nice and tight. we tried for damn near 3 hours to get the 3 collector bolts tight as hell but the leak wouldn't stop no matter what. tried a zzp gasket didn't work tried the badmab gasket still didn't work. it's leaking like crazy on the bottom of the collector and i really don't know why because on the stock header to the catless downpipe it was fine.
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