 "1.7 lost power, won't idle"-Now Runs! But..., without MPS connected....What the?? |
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| porschefool |
 Aug 1 2004, 01:18 AM
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#1
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Member  Group: Members Posts: 82 Joined: 1-May 04 From: Monroe, WA Member No.: 2,010  |
Hey gang,
'72 1.7 runs fine now, all I had to do was pull the vac line from the MPS. Why the hell would THAT do it? Can I live without it? Doesn't make sense.. Thanks to all who gave input! (IMG:style_emoticons/default/beer.gif) |
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| Bleyseng |
Aug 2 2004, 07:57 AM
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#2
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
At idle the TPS tells the engine to be on the idle circuit. As you rev the motor the MPS is rich or at WOT 0hg.(the vacuum pulls the MPS to lean). Find a good MPS and then adjust everything as the motor should be idling 1500-2000 with the MPS hose off.
Geoff |
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Posts in this topic
porschefool "1.7 lost power, won't idle"-Now Runs! But... Aug 1 2004, 01:18 AM
McMark Does it idle or drive fine? Very different situat... Aug 1 2004, 01:33 AM porschefool Just got back from proving you right...
It was too... Aug 1 2004, 11:02 AM McMark If it's running fine when the MPS is not plugg... Aug 1 2004, 12:21 PM anthony You can do a basic vacuum test with a MityVac on t... Aug 1 2004, 01:12 PM porschefool Ok.
Slapped the meter on the MPS contacts, they lo... Aug 1 2004, 04:44 PM McMark You should be still be able to get that motor runn... Aug 1 2004, 05:03 PM anthony That's not a huge amount of leakage. One can u... Aug 1 2004, 07:04 PM porschefool It eventually leaks down to zero, it only takes ab... Aug 1 2004, 08:26 PM McMark Check your injectors. It'll only take you abo... Aug 2 2004, 01:06 AM
porschefool My idle (with the MPS vac line off) is around 900.... Aug 2 2004, 01:01 PM |
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