ok i will give you a list of what i have done before i ask the question. i have an s4 NA that i turbo'd. i used a stock s5 turbo that has bigger compressor housing like a bnr, s4 tII intake manifolds and throttle body, s4 ecu,bps, maf, stock low imp na injectors for primary, tII 750 secondaries, vmount, bov vented to the atmosphere. it has safc, wideband, boost gauge.

After i got all this done it used to start. it would run alright untill it warmed up then it would try to cut out and wont rev over 2000 rpm. now while we are trying to get it running so we can figure out if there is a vacuum leak it wont even run we checked spark, tried different ecu, different injectors, checked the grounds and still cannot figure it out. it seems to flood out right away. will sound like it is going to start but then wont.

so is there anything else i can check or do to get it to run. we tried to pull it around the block and start it that way and got nothing.

any help would be appreciated.

thanks
brandon

 

"Seems to flood"? You might want to get that nailed down and find out for certain.

I've just been through detailed troubleshooting between the coils, CAS and ECU on my s4 na. I suggest you do the same.

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/87na-no-spark-cas-not-getting-thru-828977/

If you do this, make sure you use the s5 fsm. The values and wire/plug codes in that thread may not be correct for your car.

You'll also see in that thread that the solution appears to be a dry gas tank. How much is in your own tank? A flooded engine and a fuel-starved engine behave the same way.


You can search. A search of this subforum with "won't rev" in thread titles only brings back 230 hits...