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There is no such code that I have found, and I've looked at a lot of versions of 7M ECUs. Anything time related is especially easy to spot, because the only 'clock 'tick' in the ecu is a 4 milliseconds interrupt, so anything time related goes through that routine. There is plenty of diagnostics...

80%? I'd like to see your data for that. If you have a miss at idle, then something is broken. Some typical causes might be small vacuum leak, timing, worn ignition wires, plugs, etc., injector imbalance, hacked fuel system, poorly setup lex afm mod, cylinder imbalance, etc. I'll just leave...

I'm jealous, Grim joined Supramania 16 years before the first mk3 rolled off the line.

So "back in the day" Toyota's top of the line automobile was delivered to customers off the dealers lot with a slight miss at idle! Give me a break. I can tell you that I do not have a slight miss at idle and my igniter ground is not modified.

He just needs to fix one obvious problem, and a second potential problem. He's running his high impedance injectors at about 8V because he still has the resistor pack installed. Its insane and shows a total lack of understanding. The deadtime is about 280% more at 8V than 14V. The high...

If you knew how little Techtom changed in the firmware you would be disappointed.

16 bytes of learned data can only do so much....

Let me guess, you also have the injector resistor pack installed as well. By the way, testing per the TSRM doesn't tell you anything useful about the air flow signal. Its equivalent to measuring the oil pressure sensor and then saying the temp sensor is working.

What are the chances your injectors are high impedance? That would explain everything if they are.

Measure the frequency of the Lex AFM KS signal at warm idle (650 rpm). Should be 15-20 Hz if its working normally. When you say the screw is closed, do you have a special one that completely seals off the bypass slot, or it is just in as far as it will go. Turbulence on the input of the AFM...

This might seem counter-intuitive, but the lean idle and rich open-loop are related. Ironically, your attempt to lean things out by backing out the screw actually makes things worse at full throttle. The ECU is getting a very low air flow signal at idle, which means the basic fuel model will...

You need to adjust the deadtime compensation to match the RC550s. Unfortunately, you can't adjust it since its burned into the firmware of the ECU. Have you measured Vf at idle. It will tell you what the ECU is doing to compensate.

Don't waste your time with the TPS. That person is talking nonsense. If you think you have a weak injector supply, jumper 12V from the battery to the brown wire at the injector resistor pack on the driver side fender. Make sure your jumper wire has a 15A fuse.

LOL You don't need loctite to keep your cam gear from falling off on a 10 mile drive home.

Maybe this is obvious, but the standard bolt torque chart diameter refers to the thread diameter, not the socket size you are using.

When I rebuild an engine every bolt gets tightened to the specified torque. If one isn't specified, I use the standard bolt torques from bolt grade and size. Things don't fall off when you do that, just like a factory built car driven off the lot. Too many people seem to think their...

I assume the hex plugs are used to keep it in place though. Is that correct?

Saw this on Ebay. This looks better than the suprasport one I remember. Does anyone have any experience with it? http://www.ebay.com/itm/331059105749

http://www.ryderfleetproducts.com/ryder/af/ryder/core/content/product/srm/oid/142026/erm/productDetail.do http://www.autopartsandstuff.com/wix-24801-airfilterservicegauge.aspx?gclid=CIWssO7E0boCFex7QgodACQANA

Actually any late model alternator has significantly better efficiency than one like the Supra's from the old'n days.