ok let me get to the point..

-ran car to about 100
-then felt like a speed limiter kiked in
-lost all power...equivilent to a mo-ped
-loud exhaust, shaky engine
-pull over to parking lot, car stalls
-start it back up drive it home keeping the r's up
-Not a coolant promblem, no overheat, no smell, etc. (new motor)
Checked vac lines and downpipe. what else could there be? A leak big enough to stall the engine is unmistakable.
Thanks for any help,
KEN
93 base -full 3inch -power fc -intake

 

Ummm, that sounds like you blew your motor. Does it still run like ****, have no power ect when ur driving around normaly?

Better start saving....

Might as well port your motor also.

 

If you were WOT and overboosting, you may have experienced Fuel-Cut(?) Is the Engine still idling rough?? If so, check your IC Hoses/Clamps. Make sure they're on tight.

 

Aaaaand of course, "check your MAP sensor!"

 

^^^Yup seen it happen. Check the hose comming off it.

Other then that you could have blown the motor.

 

Compression check, y0.

 

ditto on compression

was this a cruise in 5th gear, or wind-out 3rd gear @ WOT 100mph?

 

Check for codes using the Diagnosis jumper then reset the ECU and see how it responds. Could of went into limp mode.

 

kaboom!

 

Make the following inspections in this order.

1. Map sensor hose (both ends)
2. compression test (both housings)
3. balances (bank and credit card)

 

That's classic!

Note: If Inspection #3 is negative, continue to drive until #3 becomes positive

 

another vote for map sensor

 

Safe mode after fuel cut?

 

^^^^HAHAAH......Agreed!!!

 

that's great! i love it!!!!

 

this sounds exactly like what happened to me. I have had my motor for about two years and was just easing in to 100 in 5th when it died on me. its been sitting at my house for 6 months. let me know what happens

 

haha that is funny

 

I honestly think some of you people would check the map sensor if your radio didnt work.

I have never, on any rx-7 I've worked on or owned, had a map sensor hose come off. Not saying it isnt possible, but it isn't the cure-all that many of you claim.

 

It just so happens that it's one of those "I never thought of that" last things on your list typa items that ppl skip. I personally had it happen to me, and I thought I had blown my engine I was gonna cry lol. Since then, I started paying attention to it on the forum, and there are quite a number of ppl who run into the same scenario, and it turns out to be nothing more than the hose d/c from the MAP sensor. Can't hurt to check it anyways, now can it?

 

umm i dont think its my motr i got it put in last year....i was at wot 3rd
map sensor not off

 

It doesn't matter if you got the motor put in last week....you have the symptoms of a blown motor. Get the compression checked.

What are your mods?

 

Mods pfc, downpipe, midpipe, catback. intake and others non-motor

 

Happened to me too. Car runs, but like crap. No power on the low end and have to ply clutch gas games to get it rolling so it won't stall. All lines are good. Fuel cut was not the problem. Sensors all metered good. BLOWN MOTOR. If your exhaust sounds more like your driving a boat and your engine shakes like you have huge cams your engine is blown. On the possitive end of that....good time for some upgrades and if you are willing to put the hours in to it....it isn't that expensive. You may not have a lot of damage to your internals and it could be an "easy" fix.

Question...how many miles on the new engine before the problem?

 

well lets see 2,400 break in and about 2000 worth of driving..So it cant possibly be anything else?

 

would a blown motor start like mine does? Sorry for the questions the motor itself is new to me . havent worked on it yet