V6 OBDII Data, 94 95 96 Chime in

[73sport]

Anyone have some OBDII data from 1MZ-FE V6's that run good at all temperatures?

If so can you share it or post it? Other options include PM with email for sending Excel spreadsheets cause snapshots are to narrow in time.

thanks

[73sport]

I'm looking for input as I need to be able to see what other 1MZ's do on average. I have nothing to reference them too and no prior experience other than what it actually does.

Overall the car runs pretty darn good. No one other than myself would bitch. But I know it can hit every note every time you nail the gas. I just haven't figured out what the variable is that keeps it from happening.

*) if hot, odds are way better it will perform better. If previously zoomed for a bit with expectation that it will come on strong - ah still 60/40. So its fine for all around driving. 100% Normal but of the times you lean in to it hard, 40% of the time it falters or takes its sweet time coming to life. It never used to be this way before. Its WAY BETTER than it was 3 weeks ago. But still not recovered completely.

*) normal driving, not mashing on it. Runs great although the LTFT are getting nearly a 2% separation from bank to bank at times and other times they track closer. Not sure why unless thats the weak 1MZ fuel rail design? Thats why I need others to chime in.

Anyone?

[91MR2quickNA]

My LTFTs deviate about 3% bank to bank on my 2000 1MZ with air-fuel ratio sensors. The front bank sees 6.25% and the rear bank sits at around 9.25%. The only thing I can think of is the rear bank's rail has less pressure because it's a returnless system. You have a return system, so your fuel rails should have equal pressure. My STFTs are 0% because AFRs give the ECU the exact air-fuel ratio and no longer need to switch between rich and lean running.

The 1MZ has bank to bank fuel control, so the ECU can run independent settings for each bank. This helps idle and overall performance. I'm not sure what's going on in your case with your erratic engine performance.

I have ported heads, am 3000ft above sea level, and run 91 octane E10 gas. Coolant temperature sits at about 180F.