k well today i checked the injectors a bit more thoroughly. i read that the resistance should be between 12 and 16 ohms. heres what i got:

1: 13.2 ohms
2: 13.4 ohms
3: 13.1 ohms
4: 13.1 ohms
5: 13.3 ohms
6: 13.2 ohms
7: 13.3 ohms
8: 13.3 ohms

so theyre almost perfect. i am really starting to suspect ignition problem again. i started to suspect O2s, but this feels like its a missed spark, i guess its just a hunch based on how it acts. i think i read another thread where injuneer mentioned that a missed spark wouldnt change the air/fuel mixture, so the oxygen remains in the exhaust and creates voltage in the O2, showing a lean mixture. so that could explain my codes.

i guess all there is to do now is replace my cap/rotor and wires.

 

i hooked up a snap on scanner to it today and got some numbers. misfire history on #1 was somewhere in the range of 14,000 to 15,000. i looked at that info last year when i was messin with a tech 2 and it was only like 3 or 4...not thousand. only 3 or 4 across all cylinders! the other cylinders were like 50-200 a piece. as it was sitting there idling the current misfires were just going up and up on #1. so i think its safe to say that the problem lies with #1 and the other ones are just due to #1 being so bad (my guess anyway...either that or the cap/rotor are bad).

what really stumps me is my O2 readings. pre-cat O2s were switching from 200ish to 800ish mV like you'd expect, and the post cat on bank 2 did pretty much the same, but the post cat on bank 1 stayed around 80 mV.

to remind you guys, im getting a random misfire code and a lean bank 1 code. occationally i pull a bank 2 lean, but its primarily bank 1. so the post cat sensor is the only one actually reading lean, but how should that pull a lean code and not a insuffient catalyst code?


im so stumped

 

wow i finally got it. i feel stupid, as most people do when they finally figure it out.

i replaced my EGR valve. it fixed it. i still feel a SLIGHT miss occationally and my idle is a bit bumpy, but then again it always has been. overall the idle is smooth as butter. no more missing at low speed, idle is solid.

apparently the pintle was sticking. i took the valve out and pressed the diaphram back and the pintle would follow until about halfway where it sticks until i jiggle it a bit and it finally drops, so i knew that had to be it.

i guess the egr being open caused the mixture to get screwy, preventing the cylinder from firing properly, resulting in a misfire, then since the oxygen in the mixture remained the same, that resulted in a lean reading. so it all stemmed from the EGR being stuck.