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Its not stalling. just a violent burst like you describe. It will happen at 3/4 throttle too and before I replaced the actuator, I couldn't rev it past 4,500 at all without getting it. I'm not sure now if its fuel cut. My boost gauge should arrive tomorrow, so that will help diagnose it.

We're talking heavy duty- didn't make it thru the yellow light dying effect here, just so you know.

It's the adjustable ATP unit. Is fuel cut an on/off thing or is is in gradations? I can floor it in 5th at 4000 and it does a softer version of that bucking l

Holy dead thread, Batman! Anyone still out there? All stock..I replaced my actuator. I had to extend the rod at least 3/4" inch to reach the gates arm. Feels like I'm still getting fuel cut as before but now I can ease into High RPMs. Is my gate not opening fully? I need a boost gauge too...

Ok I think I understand it now. The Original Actuator wasent opening up the wastegate at all. The diaphragm was totally ripped. So that violent bucking was fuel cut. Now I can ease into high RPMS but still get that cut when its floored. I might need to lengthen that Actuator rod a bit so it...

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Duro is 70. I still have them. I'm willing to part out but I'd rather sell the set.

It turned out to be a bad waste gate actuator. Took it to a shop, got charged $120 to have a mechanic blow through the line. I'd heard of that but I forgot how easy it is to test it....

Didn't change the plugs or wires. Its such an abrupt loss of power it really seems like it wouldn't be caused by something bigger than that. I could be wrong.... almost feels like total fuel/spark cut. I'm not a mechanic however.

New coils in. Runs but still stumbling when floored. I'm not sure what to look at-Might have to take it to a mechanic.

Good to know! Thanks, off to the local auto parts shop for some $25 coils!

ah ok, I see it now. So should I go with OEM coil packs or roll the dice on cheaper ones?

Well, I've got a totally failed coil pack. Limped it home on 2.

Fans are fine. Its not overheating. Still stumbling on full throttle.

AWR motor mounts for proteges. Complete set of four. $200 plus shipping. Was on car for 8 months/2000 miles.

Still no Engine light...

Its totally stock. I imagine its 5 PSI. Last night after a 7 mile freeway drive, just taking it easy, it began stalling when I exited and hit a stoplight. I had to rev it to keep it running. That's the worst its been. I checked all the obvious stuff. Haven't looked at the plugs yet but they have...

Bucking (abrupt, total power loss) on heavy throttle, stalling. It is so bad it jerks the car and I instinctively push in the clutch. Stock '03 MSP. Was doing it before I replaced Maf (I got Lean bank one error. changed MAF, disco'd battery to clear engine light.) Changed MAF. Does it when...

For sale is a complete set of 4 AWR motor mounts. 1 year old. They were used for 3000 miles on my Mazdaspeed. For all protege 2 liters. $250