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I've been curious about the Neo... no, I'm not thinking of changing. How many load levels does the Neo have? Is it really just limited to "Hi" and "Lo" and just 8 points each? EDIT: Nevermind, just found it in the manual. Hi and Lo and 16 points each. It is a pretty system.... but...

MAFT Pro.

There's more to it than just the exhaust. ;) Anyway, I have no idea how it'll effect you selling the car. You could try sending a PM to SupraRX7nut, he's got a Cali spec '90.

On the Cali specification MKIII's there is another cat before the exhaust bends under the fire wall and heads back toward the rear of the car. There's also a second O2 sensor right before the 2nd cat. The second cat is in the same place as the cat on the other (non-CA) MKIII's. A clogged cat...

Two other things you can check are the TPS' IDL switch, the AFM's FC switch, and try cleaning out the ISC. Details for all of these are under the FI secions of the TSRM, also located at the site linked to above.

Make sure you've got a good connection to each pin. If you still cannot get it to go into the diagnostic mode you can try it at the ECU. I'd check the harness though, as there's obviously an issue in that case.

Check engine light burnt out?

Unless you added an exhaust leak, you shouldn't be running any richer... at least not for any reason I can think of. If someone knows why more volume of the same gas (with the same levels) would cause your O2 sensor to think you're running lean I'd like to know. The idle could be effected...

Well, even a good high flow cat will create some restriction... I'm not debating that a test pipe may or may not free up some power, just pointing out that it's unlikely that it'll change your fuel mixture (I've seen that posted a lot lately). On a Cali. spec car it could effect the fuel...

Not as far as I know. Here I was expecting a good explanation as to why people keep saying that too. :( It may *smell* richer since the cat isn't helping to break down excess hydrocarbons, but I can't think of any reason why it would actually cause the mixture to change.

You positive you didn't put the clutch plate in backward? If so then check the clutch fork for play.

How would running a test pipe cause the ECU to start adding any significant amount of more fuel to the mix?

When retorquing on a head gasket that's been installed for a while you have to realize there is the chance that the metal jackets may have become brittle and may crack if you do retorque the head bolts. Doing it in numerous small passes and not trying to go as high as would otherwise be...

I'm going to go with "no" on this one... The closest you could get would be draining about half of the system's coolant.

Dirgle, why even bother at that point? If he goes 72 (using moly to lube the threads) and one does snap he's looking at new bolts and HG (assuming he's using a OEM composite type HG). I'm with MDC, after about 20yrs of annealing and heat cycling I wouldn't go higher than 65 (lubed with moly)...

Check your tire pressure, make sure your brakes aren't sticking, check for vacuum leaks... And stop wasting your money on 91 octane fuel?

One of the reasons to not swap the acronyms is that there are spray on cleaners out there which are labeled as "Safe to use for cleaning MAF sensors!".... do this with a KV AFM (from the 7M-GTE) and you could permanently destroy it as the KV uses optics to monitor the air flow. This covers...

The 7M-GE never came with a MAF. Technically, the 7M-GE came with a Vane Air Flow Meter and the 7M-GTE came with a Karman Vortex Air Flow Meter. Generically, Toyota and most of the members here refer to either as an AFM. A MAF (Mass Air Flow meter) is quite different and there are a couple...

I think I'm looking at about 280 this tank... quitting smoking and trying to finish tuning my high load range have resulted in the realization that at this point I should replace my TPS with a single switch.... Throttle ON, throttle off. I've realized that while I often thought to myself that...

http://www.supramania.com/forums/showthread.php?t=22645&highlight=speedo+calibration Wagon wheels won't fit... no matter how much your roll the fender's. Ask me how I know. Oh, and the lack of pneumatic shock absorption is a bitch on long drives. ;)