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I'm getting extremely annoyed. After a huge day of disappointments.. Replaced the FPR due to dropping pressures after priming. Found out it was just the smaller O-ring that was cracked causing this after I paid for a whole new FPR. FML.
So after the FPR disappointment I had some brand new tr6 plugs to put in. I ended up searching for a plug gapper for like 2 hours so new plugs were out of the question at the moment. FML.
3rdly, and the reason why I'm posting here. Bought a brand new wideband sensor thinking that my sensor was going bad due to the 15.3-16 AFR readings at cruise. Opened the new wideband.. Well **** I ordered the wrong one apparently. FML. However, the pins fit together perfectly but the plastic housings did not. Luckily one housing was small enough to insert into the other so, a couple of zipties and a bit of silicon later I have a brand new working wideband. But.. The readings were the f'n same. Tons of wasted money today.
Whatever. So I believe that my problem lies in an exhaust leak at the header to Y-pipe ball flange. I'm guessing that this is causing this lean reading. BTW at WOT my AFR hits my commanded as it should. This is why I think the exhaust leak is causing this. More pressure in the pipes at WOT don't allow air to get into muh pipes. Also, after looking over scans meticulously I noticed the first bank narrowband has tiny spikes of a lean condition at idle. Which could also explain the tiny tiny backfire sound at idle. Would air entering the exhaust at the flange really cause any kind of detonation like that? And what do you guys think about the lean issue?
Sorry for the long story, i'm venting.
So after the FPR disappointment I had some brand new tr6 plugs to put in. I ended up searching for a plug gapper for like 2 hours so new plugs were out of the question at the moment. FML.
3rdly, and the reason why I'm posting here. Bought a brand new wideband sensor thinking that my sensor was going bad due to the 15.3-16 AFR readings at cruise. Opened the new wideband.. Well **** I ordered the wrong one apparently. FML. However, the pins fit together perfectly but the plastic housings did not. Luckily one housing was small enough to insert into the other so, a couple of zipties and a bit of silicon later I have a brand new working wideband. But.. The readings were the f'n same. Tons of wasted money today.
Whatever. So I believe that my problem lies in an exhaust leak at the header to Y-pipe ball flange. I'm guessing that this is causing this lean reading. BTW at WOT my AFR hits my commanded as it should. This is why I think the exhaust leak is causing this. More pressure in the pipes at WOT don't allow air to get into muh pipes. Also, after looking over scans meticulously I noticed the first bank narrowband has tiny spikes of a lean condition at idle. Which could also explain the tiny tiny backfire sound at idle. Would air entering the exhaust at the flange really cause any kind of detonation like that? And what do you guys think about the lean issue?
Sorry for the long story, i'm venting.
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