1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Installed RB header, now the GSLSE won't start

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Old 06-24-09, 03:15 PM
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JKM

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Installed RB header, now the GSLSE won't start

I just finished up installing a RB header/presilencer combo onto the GSL-SE, without too much difficulty. Now, she won't start. She cranked up long enough to back out of the garage, then died, and it won't fire up now. My car has never had flooding issues, so I think I didn't put something together quite right.

I did remove the air snorkel and AFM (or MAF, whatever) from the car so that I would have easier access to the top of the exhaust manifold nuts. I also removed and blocked off the ACV, removed the smog pump, and removed/reinstalled the aux port actuators. I'm thinking the issue is with the AFM, and I don't have something plugged in correctly. Here is a crappy cell phone pic of the area:



Now, as you can see there is one plug that I have no idea where it goes. I'm thinking this is the culprit. I've checked the Haynes manual and a few chapters of the FSM but I can't seem to find it in either. The AFM harness is plugged in and (presumably) in good shape. The green connector if I remember correctly is used for testing the TPS, and there is a white harness near the top that was plugged up to the ACV, if I remember correctly. It is the same kind of connector as the mystery plug, but it's too far away to have been plugged in there.

Can anyone identify that plug? If that is the issue, I'm probably going to feel pretty stupid when someone tells me where it goes, but I'd rather feel stupid and have a running car than to just sit there staring at the engine bay all day. Other than that, the only thing I know to do is to go through the deflooding procedure to make sure that it's not just flooded, and then check the MAF connector to see if a wire has died on me.
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Old 06-24-09, 03:44 PM
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Both of those connectors are not supposed to plug into anything. The green one is for setting the TPS and the one with the rubber boot is used for fuel pressure testing and such (causes the fuel pump to run without having the car running).

Try the deflood procedure. Also, look around on the top of the engine to make sure you didn't lean on a connector or something and broke it. Check the green connector on the back of the waterpump especially. If that connector came off or broke, the engine will flood and be almost impossible to start.
Old 06-24-09, 04:51 PM
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JKM

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Thanks, addict. Yeah, it turns out that my car was simply flooded. Mine, the one RX-7 that NEVER, EVER floods, has finally decided to do so at a most inopportune time. When I finally got her cranked there was a big plume of smoke, then a nice rotary hummmmmmmmm

It sounds good, but it's a bit too loud for my tastes, I'm definately going to have to get the RB muffler to quiet it down. It's not as loud as my previous setup with an exhaust leak, but it's a bit louder than stock manifold to a cat replacement pipe. I seriously don't see how anyone who has header straight back to a not-so-quiet muffler can stand it.
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