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No idea at this point. Link is just finishing up the subaru version, then '01 Miata, then we'll go after the Protege. The good news is that the new design allows rapid hardware changes for fitting in different cars.

Captain, The rate of acceleration in the upper gears gives the fpr longer to react, which might cause what you're seeing. Of course there's also a heavier load at that point, so a little richer should be a good thing. I'm not comfortable recommending anything over 6 psi on a stock engine. With...

Captain, Ken has not really gotten too involved with the Proteges. I'm sure he was basing his comments on what we have seen with the Miatas. Since '99, though, even the Miatas don't like a lot of boost. I think they changed the rods. From the number of blow-ups seen on the forums, I suspect the...

Chris, maybe we can. As has been posted in the NJ Mafia thread, we've been really busy with Miata stuff, so not enough attention has been paid to the Protege. A couple technical notes on the giant ecu thread. The stock fuel pressure regulator is 1-1 stock and does not need any hoses moved to...

A couple of notes about FPRs. Contrary to what has been posted here, they do compensate for rpm/load, etc. Remember, your stock ecu is not asleep during all of this, it is controlling inj pulse width to maintain proper fueling. The fpr adds proportionally more fuel on top of the stock curves...

I'll stay out of the whole Nick/Nick battle. Advisory reading for you guys wanting to learn more about fuel/timing controls would be the Bosch automotive handbook and bosch electrical book. As one Nick says, getting a replacement ecu through a full CARB test is damn near impossible. A friend of...

Having heard of MazdaSpeed ones blowing up on the dyno at stock boost and with our experience with late model Miata rods, I'd have to say those recommendations could be somewhat incendiary. Not wishing blowups on anybody, but it'll be happening.

We've been very busy with Miata projects, yes. Have explored several ecu solutions for the Protege, including the Microtech. The thing that scared me away from that one was the total lack of closed loop mixture control, which bodes ill for street use. OK for drag use, if you're into that. We...

Correct. Our car has never pinged, except for when we tried the mp3 ecu.

Linux, Did you have ping before the clamp installation?

Linux, If the clamp went from tight to loose, it's stripped, time for a new one. 1st, all clamps were shipped late last week, you should have by the end of this week. Chris, we'll see you soon.

The loss of boost cannot be related to the ecu change. You've blown a hose off somewhere. I've never heard pinging described as a "gurgle" nor has it ever sounded remotely like a gurge to me, and trust me, I am so attuned to ping after years of turbo cars that I can hear it from most of the cars...

Just to correct something I've seen posted, the mp3 does have the same VCTS as the other Proteges.

How many of the kits are on mp3s? Let's establish that there really is a difference. To get your throttle stop back to stock, it'll be a little interesting, as there is no info in the factory manuals, because it's never supposed to be touched :-( I think your best bet will be to back the stop...

Been There Done That

1st. Opening the butterfly further will raise the mechanical idle speed. That's fine, but if it's opened enough to turn off the idle switch, then it would keep the ecu from making idle corrections. Killing the engine wouldn't necessarily rule out a small leak, it would rule out a gross leak...

Ben, Since it's an idle problem, the air will actually be leaking in, if that is the issue. Which would make the car run lean due to unmeasured additional air. I know earlier in this thread someone said they had checked all that and been able to snuff the engine by covering the filter inlet.

I wouldn't go that far, though we appreciate the confidence. We're all learning a lot on the Protege.

If anybody is listening, I'm suggesting that it may be the fpr/fmu. Not a problem with the concept, but possibly the adjustment. On 1st's car, the adjustment of the throttle stop may be contributing, too.

From that description, I'd be looking to defective pump or rack.