Block off plate help!!
#1
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Join Date: Jan 2020
Location: El Paso, TX
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Block off plate help!!
I have a 1988 Rx-7 gxl and installed the acv, egr, and sub zero block off plates and now my car won’t idle. It sounds good at start up but once I try to hold the idle it sounds like it’s misfiring. Any answers as to why that’s happening????
#4
Rotary Freak
iTrader: (10)
If you need more details you can do a Google/YouTube search, but you have two main options.
1. You can spray a combustible aerosol (brake cleaner, carb and choke cleaner, etc.) around the engine bay with the engine running. The idle will rise when you spray an area with a vacuum leak.
2. You can spray the engine with soapy water and pressurize with compressed air (usually via a PVC cap with a tire valve stem installed in place of the intake). You will see bubbles forming from where the leak is. Not much pressure is needed, usually a 1/2 second blip of compressed air at a time is all you need.
Guarantee you one or all of your newly installed block-off plates are leaking. Did you replace the paper gaskets and/or apply RTV to both sides before installing?
1. You can spray a combustible aerosol (brake cleaner, carb and choke cleaner, etc.) around the engine bay with the engine running. The idle will rise when you spray an area with a vacuum leak.
2. You can spray the engine with soapy water and pressurize with compressed air (usually via a PVC cap with a tire valve stem installed in place of the intake). You will see bubbles forming from where the leak is. Not much pressure is needed, usually a 1/2 second blip of compressed air at a time is all you need.
Guarantee you one or all of your newly installed block-off plates are leaking. Did you replace the paper gaskets and/or apply RTV to both sides before installing?
Last edited by DC5Daniel; 01-09-20 at 07:36 PM.
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