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So jj, are you saying an ignition problem would show lean on the wideband?

Well I drove to Colorado from Houston and had no problems whatsoever on the trip up. I have been there for about a month and the car is starting to have some issues. I know the air there is very thin, and I am reminded of that every time I go up the stairs from the basement I rented. I...

Yep, I will be driving the supra.

Was going to suggest that, mine had the same problem, click from relay but to start, play with it then it would crank. Mine had something to do with the factory alarm not giving a ground source. Put in a Bosch relay and hasn't done it once since then. Wayne

Must drive to Denver area for 6 week work assignment in the morning from Houston. Would enjoy meeting some of the local Denver guys since I won't be coming home for the weekends. Will post my mobile number as I probably won't have access to a computer. Wayne 713-894-2936

Amen to that.

Check motor mounts and the fan. If you have a broken fan blade, it will do some shaken. I have had both of these parts fail at different times, both of which gave me some vibrations---motor mount would shake in the front end and sterring wheel at speed, the fan missing one blade would...

Mine goes from 39* to 45* on recirc and fan on high in Houston, cruising down highway, outside maybe mid 90's. Converted to r134 by previous owner. Wayne

I just bought one for 50 bucks shipped. Wayne

Got the Koyo in the group purchase. Like it alot, great quality in form and function. How about responding to your pm's? Wayne

Your mechanic is probably right. Seems to be a common problem with the 7m. Check your chrome screws that fasten down the cam covers to see if they may not be tight. Those little rubber washer deals kinda keep the screws tight. I would change the cam cover gaskets and clean the oil out of...

well to update, I had an injector insulator, that was leaking causing a vacuum leak and my lean idle conditions. It is still very rich under boost. Still trying to figure that one out. Wayne

I will try this tomorrow. Thanks Wayne

Swapped ecu's, no change. Took neo up to -20% on high fuel trims with very little change if any. At idle my Vf is almost 5v but idle afr's are still lean approx. 16.x:1, but as soon as I barely blip the throttle it shoots way effen rich 10.x:1 Still no change with O2 sensor plugged in or...

I think I will plug in my other ecu and see if things change. Wayne

I don't think the O2 sensor has any bearing on anything in my case, seeing how it causes little or no change in Vf or afr's when plugged or unplugged, I still get a Vf signal at the diag block with O2 input with its input or not. I know it goes into open loop on initial cold start up because...

I got that, but, whats driving Vf when O2 sensor is absent? I can't help believing that my mixture woes, rich and lean, and the Vf signal present with no O2 signal would be related. Does it go into some kind of "limp mode" when another sensor drops out and ecu ignores the O2 signal to keep...

yes around 4.8 wich is 5v on my car. shouldn't be going to zero when unplugged?

All right guys, there is something real strange going on here. When I unplug my O2 sensor, Vf does not change and we stay in closed loop. Wayne

When the O2 sensor is unplugged, does Vf go to zero?