While I have the solenoid rack out.

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07-21-2009, 07:14 PM

#11

millennm

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Join Date: Dec 2004

Posts: 49

Quote:

Originally Posted by Signal 2' post='924430' date='Jul 16 2009, 05:51 PM

*I'd go ahead and put a new coil harness in while your there.

*I wouldn't buy NEW injectors, but pull those and send them in for cleaning and flow testing.

*+1 on making sure your air filter is clean.

*O2 sensors are pretty inexpensive and relatively easy to change so yes, replace it.

I don't have emissions in my state so I'm curious, do you do testing with the engine at full operating temps?

The old check valves work in one direction like they're supposed to. But when I blow in them they require alot of pressure before they open.

Has anyone used Viton Check Valves to replace the 2 green & black and 2 white & green check valves? Thanks.

07-26-2009, 05:42 PM

#12

Signal 2

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Join Date: Dec 2003

Location: Mid-West

Posts: 791

Quote:

Originally Posted by millennm' post='924610' date='Jul 21 2009, 07:14 PM

I can't remember for sure, but you might check the FSM to see what the specs are on checking your valves using a miti-vac. The only two that are important for the sequential sytem are the ones in the lines off the vacuum and pressure chambers. I believe the others are just for emissions.

FWIW, I replaced mine with the valves in that link. The guy who sells them is DaleClark on rx7club.com. They've been in for about two driving seasons now with absolutely no issues.