mazdarx7typer

hi ai have a rx7 93 engine is fully rebuild white new bnr turbos stage 3 and the boost up to 4500 5000 rpm fall from 0.9 bar to 0.2 bar when the 2 turbo activaited and i have a problem white the air pump it will not working a put a little cabel in place from relay and the pump run great but white the relay not working the relay is new and works fine its the air pump controlled white a solenoid ? thanks in advance

gracer7-rx7

iTrader: (16)

Hi.

A few different factors could cause that issue. I am sympathetic to your issue as I spent a year trying to troubleshoot it myself until I gave up and took it to a local rotary shop. Best thing you can do if you are trying to troubleshoot is to go to the 3rd gen FAQ thread here:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

and go down to the T section where you will find some links for turbo troubleshooting. There are a lot of good threads there. Perhaps start with these:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/why-engine-so-damn-complicated-part-1-sequential-turbos-demystified-841821/
http://www.autosportracetech.com/RX-...leshooting.htm


The air pump is based on rpm. They don't fail often. Is the electrical plug intact?

mazdarx7typer

hi thanks for the tips . yes i know but my rpm is a little bad the car in idle 800 rpm when ai activaite the a/c the rpm jump to 1000 rpm and run great but white all electical component i have bad idle i rebouil the engine my self and the compression is ok controlld by mazda workshop can a bad adjust from the tps senor or the fast idle cam influen the idle or the air pump ?

mazdarx7typer

sorry for the dubel post ai dont know for this electrical plug ?