RX7Club.com - Mazda RX7 Forum - Good idle, backfire/stumble under load (vid inside)

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RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)

- 2nd Generation Specific (1986-1992) (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/)

- - Good idle, backfire/stumble under load (vid inside) (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/good-idle-backfire-stumble-under-load-vid-inside-928851/)

Alpha-7

11-01-10 05:59 PM

fuel pressure regulator ? hmm

Alpha-7

11-01-10 06:16 PM

sounds like maybe no fuel goin to the rear rotor ? are the harnesses connected to the injectors correctly?

hosmer

11-01-10 06:36 PM

The FPR checked out, pulled the return line off the tank, turned the pump on with a switch I wired in..no fuel came back until I hooked a vacuum pump (my brake bleeder) up to the FPR and put some vacuum on it

I had an injector clip go bad on the rear rotor, I'm very familiar with what that sounds like

I'm trying to boost leak check it more but its damn near impossible without a compressor in the garage and my home depot "checker"...

Banzai-Racing

11-02-10 06:22 AM

Here is the instruction manual for the commander http://www.banzai-racing.com/store_i...werFC_FD3S.pdf

Pg 38 of the PDF (35 of the instructions)

Print it out and read it, there is a lot of useful information.

SirCygnus

11-03-10 09:42 AM

oh god this is so full of fail.

hosmer

11-03-10 11:35 AM

Quote:

Originally Posted by SirCygnus (Post 10296831)

18 psi? mine idles with 8 psi.

You're full of fail so shut your mouth

jerd_hambone

11-03-10 11:50 AM

Quote:

Originally Posted by hosmer (Post 10301258)

You're full of fail so shut your mouth

Or fingers rather. Or maybe his e-mouth?

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