I have no idea haha. I thought I might of had some coils that were going out so I swapped some from bank 1 to bank 2 hoping the problem would follow but it didn't. My next guess is that I may have a variance in my injector flow and I may get them flow checked and see how that goes. It runs pretty good in open loop but I still have a ~10% different in bank 1 and 2 ltft
My Scion Xa is doing the same thing, but only on cold start. It will bog if I'm trying to drive for the first minute or so after starting. I changed injectors, coils, plugs, air filter, cleaned the MAF sensor etc. but still doing it. I haven't changed the O2 sensor yet. Have you tried that?
Yeah bank 2 sensor 1 would periodically show up with a malfunction and I swapped it a year or so ago and nothing changed. Someone said I could have an exhaust leak but it would either have to be a cracked header or the manifold gasket since the o2 sensor is made onto the shorties
Not really I had a vacuum leak from the fuel tank because when I put a new pump in I didn't get the lid on quite right and that helped a little but I still get random misfired because I either have a intermittent vacuum issue or my coils are going out or something. Fuel trims stay 10-15% off each other from bank 1 to 2
@@jayfpv2405 yeah I have messed with the tune a bunch but I basically can't tune it.correctly because there is such a discrepancy between bank 1 and 2. Ltft just wont get within 10% of each other so I I pull fuel to correct 1 the other goes lean and visa versa
What was the fix
I have no idea haha. I thought I might of had some coils that were going out so I swapped some from bank 1 to bank 2 hoping the problem would follow but it didn't. My next guess is that I may have a variance in my injector flow and I may get them flow checked and see how that goes. It runs pretty good in open loop but I still have a ~10% different in bank 1 and 2 ltft
My Scion Xa is doing the same thing, but only on cold start. It will bog if I'm trying to drive for the first minute or so after starting. I changed injectors, coils, plugs, air filter, cleaned the MAF sensor etc. but still doing it. I haven't changed the O2 sensor yet. Have you tried that?
Yeah bank 2 sensor 1 would periodically show up with a malfunction and I swapped it a year or so ago and nothing changed. Someone said I could have an exhaust leak but it would either have to be a cracked header or the manifold gasket since the o2 sensor is made onto the shorties
Hi did you ever find the problem?
Not really I had a vacuum leak from the fuel tank because when I put a new pump in I didn't get the lid on quite right and that helped a little but I still get random misfired because I either have a intermittent vacuum issue or my coils are going out or something. Fuel trims stay 10-15% off each other from bank 1 to 2
@@yota243 looks like your running rich as your stft are pulling back alot of fuel. I've got a similer problem with my car
@@jayfpv2405 yeah I have messed with the tune a bunch but I basically can't tune it.correctly because there is such a discrepancy between bank 1 and 2. Ltft just wont get within 10% of each other so I I pull fuel to correct 1 the other goes lean and visa versa