Please take the time to listen to my story, even though I have told it numerous times on this and other boards.....

My car had an SES when scanned said "Fuel too lean in bank 2", my fight to try and combat this has included numerous swaps of parts.....including in december of last year the swapping of my stock fuel pump with a high flow racing fuel pump, well after that didnt fix the issue, I just stuck with it and headed up to my parent's house for the holidays.

On the way there, the car all of a sudden refused to shift into reverse. I managed to get to my parents house and we took the car to a tranny shop. They told me that due to my improper torquing down of a new clutch plate, it was only wearing on one side of the clutch. Well that was an expensive lesson about do it yourself repair.

So with a new clutch installed I headed back south. Item of note, the SES light never came back once the clutch was changed out and the drivetrain reassembled. I drive the car throughout the month of January with no issues.

All of a sudden, there would be instances when in 5th or 6th gear, if I put too much gas into it, it would start choking, the car would start shaking violently and backfiring. After talking to my father who knows alot more about mechanical work than myself, I told him that I thought it was the fuel pump sending too much fuel to the engine. This is also based on the fact that while driving friends would point out that gas would come out my tailpipes.

So I took it back to the mechanic who installed the aftermarket fuel pump, we went for a drive in the car and he said that the engine was misfiring. Ran a scan on the new SES light, and it agreed that the engine was misfiring, although it didn't indicate which cylinder. He called and said that he would swap out my plugs, wires, and change the fuel pump back out with a stock one for 600 bucks.

I said ok, I get the car back 3 days later, with the plugs and wires changed, but the pump wasn't changed. Since he messed around with changing the wires and plugs for all that time, he still charged me 600 bucks. I was pissed, took the car back and drove it around. NOW the idle is a lot harsher, the SES light will flash at idle once the engine comes up in temperature. I have yet to inspect the wires and plugs myself.

Over the past week I changed the fuel filter and the fuel pump with the stock one, started the car back up, same issues.

So here I sit, afraid to drive the car for fear of damaging it, but still need it to get around. I have several ideas in mind, what with my limited technical knowledge.

1) With the fuel system, the fuel pump is sending way to much fuel, over time did it start building up somewhere? I changed the pump and filter, where would the build up be? The injectors? Or am I just going about that aspect all wrong?

2) Is it this new clutch doing this? Is it installed wrong? It worked fine all that time, shifted like a dream, until mid-January.

3) As far as the issue about the idling and engine missing more often after the plugs and wires getting changed out, the wires were re-routed and instead of being up by the block, they look taught and almost strained, that might be why the engine is even more worse off now. Or maybe it's just the problem getting progressively worse.

I am really stuck in a rut and out of ideas, well, besides those. if anyone has anything they can suggest to me or maybe a RELIABLE place to go and have it looked at in the virginia area, as I always say, I would greatly appreciate it. Thanks

 

Hard to diagnose some issues with our cars online, honestly a good shop that knows wtf they are doing on these cars would do you a world of good.

1) First thing I'd do was get your Dad and you two go have a talk with this joke for a mechanic you last went to and get him to fix what he should have done in the first place and give you the labor $ back for what he didn't do, Fuel Pump. And I'd have him re-route the plug wires the way they are supposed to be. I never accept a halfass job from anywhere, they don't get paid until it's fixed right, but I'm also selective of who I use, mostly for my sons cars, mine is worked on by me or someone topnotch if I can't.
2) Back to my good shop statement. A good shop that knows how to scan your car, read the results and understand what to actually fix is a key element in your equation of problems. Most decent performance shops have LT1Edit, tap into your data both cold & running and understand whats going on real-time, or at least where to start finding problematic issues. It sounds like someone done that for you based on your story, but they didn't really find what was wrong. Your running lean on bank 2 could be a number of issues that shouldn't be this difficult to resolve. I don't think your transmission is causing your idle issues much less how its running lean.
3) I was running rich on bank 2 which disallowed the tuner to tweak my timing, fuel curvers, etc. Turned out to be my JetHot #1 slipfit primary leaking again and sucking in more air, fooling the 02 sensor to thinking bank2 needed more fuel, thus signalling the PCM to add more fuel. I fixed the leak, weak back to the tuner and he got it right. But the difference here was we backtracked what issues could cause this, the fuel pressure was fine through all rpms, we checked the headers & found the problem.
4) Like I said it's hard to diagnose certain things, not sure if you have good performance shops in your area but at this point I'd consider trying to find one.

Good luck man, wish I had a fix this/fix that cure for ya.

 

Well.... I've seen that when "Fuel too lean in bank 2" is scanned, is mostly due to bad O2 sensors.... I don't see why you replaced fuel pumps, I would say there's a bad O2 sensor......