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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

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Old 10-30-2008, 04:37 PM   #16
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no i didn't remove the thermowax because of the whole "hold your foot down for 1 min before the car warms up thing. However, now I'm thinking of getting rid of it. Airflow meter IS connected, but no I haven't tested it.

As far as the idle screw, is that the big capped off screw on top of the TB? I read somewhere not to mess with those.... so i didnt want to touch it.






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Old 10-30-2008, 10:20 PM   #17
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Ok, here's a theory: When I hooked up my FPR and MAP sensor, I used a T fitting, so both of them go off of one vaccum nipple, and since my 6 ports are removed, and the VDI is currently non operational (will install the tire pump thing later) iw was wondering that maybe they dont get the right amount of vaccum?

I dunno, but to me it seems like a possible add on to something else wrong.

Anyway, I'm going to tear the intake back apart, and redo some stuff, and put cork gasket where I just used RTV on the BAC, and VDI since their gaskets were torn, as well as ziptie all my vaccum lines, check for leaks in the oil injectors, and ETC.

I also think my o ring between the throttle body and plastic thing may possibly be leaking, so I'm going to temporarily put some cork there as well.
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Old 10-30-2008, 10:44 PM   #18
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with no vacuum leaks and stock ignition timing I could get my '86 to idle at about 300 rpm. My '91 will only go down to about 400 rpm with the idle screw all the way in (700 with 15 degree advance)

edit: If you get your ignition timing right, the car should rev ok when held flat on the floor (as long as AFM is functioning properly and TPS reads wide open). Vacuum leaks have little effect at WOT.
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Old 10-30-2008, 11:22 PM   #19
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Well, it does seem to rev sort of ok... if I press the gas down harder, but if I just tap it a bit, then it goes to shit, i have to rev it really hard for it to go.. and I dont like that because I dont want to blow it up with it misfiring like it is too.
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Old 10-31-2008, 05:00 AM   #20
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Quote:
Originally Posted by Max777 View Post
if I just tap it a bit, then it goes to shit,

Deff sounds like a vac leak.
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Old 11-03-2008, 11:45 PM   #21
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Well, I dicked around with it today... now it starts and revs to like 5,000 rpm, seems like I fubared the throttle body, lol.

Oh yeah, btw: I checked compression with another gauge, on a cold run, it was right below 90 so it looks like I got compression!
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Old 11-16-2008, 11:41 PM   #22
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Well, shit... so I got the throttle body, put it in, and tried to start the car...

I thought it was just flooded, so I deflooded it, and tried again... still no go.

Then as I was looking for what was wrong, I saw that my leading coil was unplugged,doh!

(I got my turn signals in a few days ago, and when i was soldering them in place, I unplugged the coil wire so that the harness would be more acessible.

Then, I found that I left my fuel rail/map sensor vaccum disconnected as well... double doh!

So, I drained the FUCK out of the battery for nothing, put the thing on a fast charge, and tried again... still cranked slow as hell...

So, I'm gonna put the battery inside today because it's cold outside, and then complete charging it tomorrow...

I'm getting my wheel bearings pressed in tomorrow, so I will probably do all this shit after that gets done.

...shit, which reminds me... I gotta buy new seals...

Ah, the joys of owning an RX-7...
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