i have a 86 gxl rx7 and i just replaced they motor the old one was shot.when i got it all done i went to start it it would crank 5 or 6 times and it started and it wont even run for a minute when it does start it idles up to about 2500or 3000 rpms and dies went over the vaucum hoses several times and i think i got them all in the right place and i got all the wires pluged up right i think the only wire i didnt plug was a green wirethats buy the top of the intake.

 

When I did some engine work a few weeks back, I took off a vaccuum hose to get to the VDI easier. When I tried to crank the engine, I forgot to replace the vaccuum hose, and it acted EXACTLY like your description. Revved to 3k, then just died. Double, triple, quadruple check those lines. I bet that is your problem. Good luck!

 

I've got that same problem two times now. First time I forgot to reconnect the airflow sensor and the second time I forgot to connect the little airtube that goes from the large airtube (the one between the airfilter and the throttlebody) through the throttlebody to the bac.

You are right about the green connector, it doesn't need to be connected, it's for checking the TPS settings.


Marco.

 

alright ill check the hoses agian thanks for answering my question i write back if thats what wrong with it .these cars take some time and a little bit a of brain power but when you get them the are a great car to have.

 

It dosen't help that there are about a hundred vaccuum lines on the damn engine, and any one of them can get cracked or can pop off. Good luck!!

 

i got it running i spent all day looking over the vaucum hoses they all looked like they were in the right place so at the end of the day i thought to myself that it could be the plugs cause i had an old moped do the same thing so i changed the plugs and it started right up runs like a champ.thanks