 Got her running..., 4000 RPM idle speed!!!! |
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| bpetry |
 Dec 3 2007, 09:58 PM
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Newbie  Group: Members Posts: 8 Joined: 12-November 07 From: Springboro, OH Member No.: 8,324  |
OK, so I just got my '72 1.7 EFI running for the first time. Replaced all the vacuum and fuel lines and I thought everything was hooked up corectly per the pelican tech diagrams but after she fires up she idles for a few seconds and then zips right up to 4000 RPM (with no muffler I'm sure the neighbors loved that!). The throttle plate is almost all the way closed so it must be sucking air from somewhere else. I pinched off the big hose that goes from the plenum up near the oil fill and that seemed to slow it down a little, but I don't like letting it rev that high, especially when it hasn't been run in so long so I shut her off and figured I'd come in and ask the experts, any ideas? Regards, Brian Petry, Springboro, OH |
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| bpetry |
Dec 4 2007, 06:46 AM
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Newbie Group: Members Posts: 8 Joined: 12-November 07 From: Springboro, OH Member No.: 8,324 |
Thanks for all the replies. I've got a bunch of stuff to look for. I know the AAV hose is cracked and meant to address that before I got too far into it. Can I just plug it for now? Also I just noticed, the PCV line wasn't plugged into the PCV, so between those things that is probably alot of it right there. I'm used to working on carbureted vehicles that won't idle at all when there's a vacuum leak, not the opposite! |
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Posts in this topic
bpetry Got her running... Dec 3 2007, 09:58 PM
jimkelly first get a muffler on it : )
maybe disconnect co... Dec 3 2007, 10:11 PM brp986s I disagree with altering the ecu mixture and cold ... Dec 3 2007, 10:46 PM McMark The throttle would have to be significantly open t... Dec 3 2007, 11:28 PM nola914 There's a bunch of possibilities. Sounds like... Dec 3 2007, 11:32 PM Dave_Darling You have a large air leak. Most likely you have a... Dec 4 2007, 02:38 AM BiG bOgGs Just recently I got my engine fired again, also af... Dec 4 2007, 06:15 AM army dude Its not supposed to idle that high?
Ian Dec 4 2007, 02:14 PM swl I agree with all the air leak guys. It is going to... Dec 4 2007, 07:27 PM
bpetry Yep it was the AAR hose to the intake. I plugged ... Dec 4 2007, 11:25 PM ConeDodger Mark asked me to take a picture of it and I will g... Dec 4 2007, 11:40 PM McMark Bring it with you Saturday Rob. We'll show it... Dec 5 2007, 12:17 AM |
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