I am still trying to get my car to run right. First my boost issue. I hit 15psi at WOT and when I do a 3rd gear pull without boosting past 10psi I loose all boost at 5K. I can hear that there is a exhaust leak in the turbo area. My DP also gets red hot. Another problem I have is my idle. It will be good at 750ish but as soon as I start drving it will idle at 1.5k and if I drive fairly hard it will some times idle as high as 2.5K. I took it to my local cayon and did a decent speed run and when I got to the end the car really wanted to die. I believe it is an electrical problem because if any elecctrical device was turned on it would drop the idle and when I turned on the A/C it nearly died.

 

First off, we need to know your modifications. If you hit 15psi on the primary, something is REALLY wrong. It sounds like your turbo pre-control actuator/solenoid (like a wastegate for the primary only) is not opening. In turn, it'll never pre-spool the secondary turbo. Also, your turbo control actuator/solenoid could be bad too.

http://www.autosportracetech.com/RX-7/rx7stuff.htm

Read through that website and come back to us (or me). Feel free to IM me on AIM if you need further help.

 

Dude, if your hittin 15 psi, you gotta be leanin it out. Im suprised you dont hit fuel cut off every time. . . And yes i agree with Walien... your vacuum lines or solinoids are messed up. May be time to get a silicone hose job!!

 

Yeah I was plannin on having to do the vacuum hose job soon. I have looked at that site already I just havent had the time to go over everything yet. I try not to hit 15psi. I have a Pettit ECU probably unlimited because I havent hit fuel cut . Intake, DP and catback. I also have my battery relocated to the trunk.

 

Nevermind the boost problem. Today my idle was around 2.5 to 3k!! It would not drop. Any ideas?

 

anybody? It even wants to jump higher then that when I shift.

 

mods?? I had this problem and the source was a blown secondary injector. it was stuck open and the pfc "learned my idle and set it to 2500 to compensate for the fuel......... I think.... I have yet to see if that was the probelem after I upgrade my fuel system

 

Yeah I think it is an injector problem because when I drove home on the freeway it stopped doing? Maybe me being on the throttle burned off the excess fuel. My mod list is a couple posts above.

 

Bump

 

Try adjusting your TPS. It solved many of my idling problems...Just a thought.

 

I checked the TPS a couple of days ago and it seemed to be in the ok ranges.

 

find a rotary specialist that knows what they are doing or start making friends with the search button.

you have both a boost leak as well as vacuum issues. if you aren't careful, you'll have a blown motor too.