I have a 1989 Mazda RX-7 convertible, it chokes out
when I drive it on the road, the engine light comes on and
then it runs awful

 

Pull the trouble codes. I'm betting the metering oil pump has failed and the car has defaulted to limp mode.

 

ok thanks! but also it does not do it on jack stands, only on the road,
I will get an obd 1 scanner and read the code. Thanks again

 

ok thanks, but it only does it on the road not on jack stands.
I will get an obd one scanner and read it thanks again!!

 

can I just run 2 cycle in the gas and unplug it to see if that works, or will the ecm still shut me down.

 

since It is an S5,NO..you cannot Disconnect the Oil Metering Pump.
It NEEDS to be connected and the ECU needs to SEE it Connected,(EVEN IF you decide to Premix.If you decide to Premix you have to Take the OMP out and Dangle it Somewhere in the engine bay..That or Go Standalone Computer.)
you need to find a GOOD OMP...Post a Wanting to BUY in the Sec Gen FOR sale Section and also the "regional" For Sale sections of the Forum,Someone May have one.and it wil save you from Buying from the "stealership"..Good Luck.,sTYX.

 

You don't pull the codes with a scanner, here is a how-to along with the codes and what they mean http://www.banzai-racing.com/FD_S5_error_codes.htm

 

Not sure what this has to do with jack stands, but OK.

An ODB1 scanner won't help you.

No. The ECU must see a functional metering oil pump or it will go into limp mode.

 

ik thanks, the jackstand thing if I put it on the stands I can go 1st 2nd 3rd 4th 5th up in 100 plus mph but once it hist the pavement we have problems.

 

thanks

 

thanks!!

 

Its probobly LimpMode.. which means it has an OMP failure.... Replace the Oil Metering pump... Limpmode BE gone! =)

 

I say this because same thing happened to my friend.. Replaced OMP.. Car runs Beautiful now..

 

thanks everybody let you know when I check these things out and get them replaced

 

A failed OMP on a S5 will more than likely take the ecu with it

 

so I have herd just saving money for the parts for it now thanks yo

 

Does an s4 omp controled by the ecu?