Tyler [S5 FC]

I've gone to 3 rotary specialist and a family friend who's a technician, and I can't figure out this problem I'm having. So let me tell what's happening, what I've checked and hopefully maybe you'll have some ideas as to what is going on.

I'll start her up (89 non-turbo) she runs fine, no misfire, very smooth. So I'll drive her forr about 15 minutes of actual driving (keeping the rpm range from 3-4k) Then I'll let off the gas at some point, and when I get back on the throttle she barely runs. She idles okay but when I try to get her goin it acts like I only have like 30hp (almost stalls tryin to start from zero) She doesn't sound choppy or anything, the engine still runs smooth, but no power. If I floor the throttle, she really bogs out and almost stalls. So I turn her off and back on and she runs good again! Its like it resets whatever is happening. So she drives fine for 10 to 15 minutes and does it again! What is doing this?

I've replaced spark plugs, plug wires, checked the fuel pressure, had the MAF cleaned, replaced my crank angle sensor, and had a mechanic hot wire the ignition coils so it had constant power and the problem still happened. He's a rotary specialist and told me he had no idea what it is. He told me to take it to Mazda, but I don't want to pay dealer prices to fix this! Please help!!!!

JustJeff

iTrader: (13)

Your car is going into "limp mode" for some reason. I'd think a rotary specialist would be able to recognize this...so I wouldn't take your car back to who you've taken it to before.

When you turn the car off the car comes out of limp mode and it takes 10-15 min. for the ECU to register that something is wrong and go into limp mode again. You should be getting a check engine light on your idiot cluster at the least when it goes into limp mode.

You can pull the check engine light codes pretty easily and that will show you where to start looking for whatever is causing your car to go into limp mode.

Do a quick search of the forums and you can find plenty of info on check engine light how-to's and what the codes mean. Once you have the codes you can do another search for those code numbers to see what experience others have had.

Here is a link to a rotary specialist who has some good info on his website. Go to how-to's and you'll have another option for pulling check engine codes...or something to that effect.

http://www.banzai-racing.com/