I just got my rx7 93 104kmiles auto.. Well it starts fine and idles fine.. But when under a load it rocks hard back and froth from 1krpms to 2500rpms and wont go past that. It was shooting some flames and backfiring like crazy..

Any help would be greatly appreciated

 

sounds liek its running really really rich

check the codes

 

will it throw a code if it is doing that? Is there a way to jump a few wires to read codes? Is it obd2?

Thanks

 

obd1
i dont know if you have to do anything special to read a code on a fd

 

would tha tkeep the car from going over 2500rpms? and making it jerk back and forth?

 

Have the codes scanned by someone (any automotive shop should have an ODB1 tester). That'll immediately tell you what's wrong. If you're more of the DIY type, get a shop manual (I like Haynes, but any will do) and go through the diagnostics.

In a nutshell, it sounds like a bad sensor/vacuum line. The most important sensor/vac line is the boost sensor (probably your problem), but don't discount every vacuum line, especially the ones that are near the turbos. Check the water temp sensor, intake air temperature, and the AFM (or is it MAS?). Replace all the vacuum lines (with silicone ones), and make sure everything is nicely plugged in. Take things one step at a time and don'e turn a simple problem into a complex mess.

 

Hmm I've just had my RX7 Twin Turbo for about a month and I'm having similar problems!! ALthough mine seems to be fine until I hit more then Half throttle!!! The twitching and roacking, backfiring all to familiar though! Mine only started doing it after I foolishly ran it out of fuel!

 

I scanned the codes by jumping some terminals.. I got code 44 Turbo control Solenoid where is that located?

Thanks