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> New to the Forum - 73 1.7L FI, questions about running rough
tadink
post Aug 17 2011, 10:08 PM
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Hey all - Please allow me to introduce myself and I'll post some pix as soon as I can. I'm a longtime PCA member and have restored a 67 911 that is still in the family....now I've gone an purchased a 73 914 1.7L Fuel Injected car in the Bay Area. It has been sitting for a bit, does not have appreciable rust, and seems in generally good shape apart from some mostly minor issues.

Question - after having been sitting for 6+ months, she fired up and ran - but a bit rough. No engine noise or knocks, but the idle is rough, it stalls at low rpms, and is pretty rough except under a good amount of throttle. I'm thinking dirty injectors at least - what is the best course of action from here?

options - add injector cleaner, good gas, run the bee-jesus out of her
option2 - get the thing to the mechanic and let him sort it out
option3 - ????

your help and guidance is appreciated - I've had great success with the lads on the Pelican Parts 911 board, and you all seem quite helpful as well as I've read thru the posts on this board. Hope to be able to contribute as well as learn...

best

tom
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SirAndy
post Aug 21 2011, 09:31 PM
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I don't see your MPS anywhere? And no air filter? (IMG:style_emoticons/default/confused24.gif)
Some of them "plugged" hoses should be going to the air filter.

Also, that looks like the wrong fuel hose and most certainly the wrong hose-clamps. That is an engine fire waiting to happen.
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swl
post Aug 23 2011, 06:33 PM
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QUOTE(SirAndy @ Aug 21 2011, 07:31 PM) *

I don't see your MPS anywhere? And no air filter? (IMG:style_emoticons/default/confused24.gif)
Some of them "plugged" hoses should be going to the air filter.

Also, that looks like the wrong fuel hose and most certainly the wrong hose-clamps. That is an engine fire waiting to happen.
(IMG:style_emoticons/default/blink.gif)

Gotta agree Andy! That whole area is a dogs breakfast. Not only what you pointed out on the fuel hose but is that actually the fuel rail hanging in mid air with long sections running to the injectors? and one of those hoses is routed through the MPS bracket?

The MPS has to be around somewhere. DJet won't run without it. There is something hidden below the decel valve but it sure doesn't look like an MPS.

TD someone has really done a number on this car. You really need to sort it out before you go running that engine. There are enough folks here to help you through it and it won't be hard or terribly expensive. But it needs to be done.

Here is what that area should look like (the leaf is optional)
Attached Image

The decel valve is the small one on top and the MPS is the big one below. You can just see where the fuel rail goes. It is peaking out from under the left side of the mps.
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Posts in this topic
tadink   New to the Forum - 73 1.7L FI   Aug 17 2011, 10:08 PM
underthetire   Do a full tune up. New wires, fuel lines, valve ad...   Aug 17 2011, 10:13 PM
rick 918-S   Vaccum leaks from old hoses, bad gas and sticking ...   Aug 17 2011, 10:24 PM
kerensky   Vacuum leaks from old hoses This. Fuel injection ...   Aug 17 2011, 10:36 PM
simonr   Fresh gas can always work wonders on a car thats b...   Aug 18 2011, 04:48 AM
eric9144   Do a full tune up. New wires, fuel lines, valve a...   Aug 18 2011, 09:01 AM
tadink   Do a full tune up. New wires, fuel lines, valve ...   Aug 18 2011, 09:45 AM
ezbngreen914   I got the same car (1973 914 1.7) back in Nov. 201...   Aug 18 2011, 10:31 PM
underthetire   Fuel injector cleaner: old berrymans in the tank a...   Aug 18 2011, 10:34 PM
tadink   Fuel injector cleaner: old berrymans in the tank ...   Aug 18 2011, 10:46 PM
swl   There are good mail order fuel injector services a...   Aug 19 2011, 08:14 AM
scott_in_nh   Check that both the distributor vacuum advance/ret...   Aug 19 2011, 11:17 AM
tadink   Check that both the distributor vacuum advance/re...   Aug 20 2011, 11:17 PM
perrysan   When the engine is cold, does it idle/run OK, but ...   Aug 19 2011, 11:38 AM
tadink   LOL - - you guys are the best, and I'd take yo...   Aug 20 2011, 10:57 PM
swl   I need an idiot's guide to fuel injection, cl...   Aug 21 2011, 07:33 AM
tadink   I need an idiot's guide to fuel injection, c...   Aug 21 2011, 12:41 PM
SirAndy   I think it's time you post some pics of your e...   Aug 21 2011, 12:44 PM
tadink   HI guys - some pix - 1st is from the port side l...   Aug 21 2011, 01:06 PM
swl   There are a few things that are just out of site t...   Aug 21 2011, 07:56 PM
tadink   There are a few things that are just out of site ...   Aug 21 2011, 08:33 PM
SirAndy   I don't see your MPS anywhere? And no air filt...   Aug 21 2011, 09:31 PM
Elliot Cannon   I don't see your MPS anywhere? And no air fil...   Aug 21 2011, 09:37 PM
tadink   I don't see your MPS anywhere? And no air fil...   Aug 21 2011, 10:37 PM
kerensky   sigh - perhaps this is a bridge too far and maybe ...   Aug 22 2011, 08:47 AM
swl   I don't see your MPS anywhere? And no air fil...   Aug 23 2011, 06:33 PM
tadink   [quote name='SirAndy' post='1528602' date='Aug 21...   Aug 23 2011, 08:55 PM
Jeffs9146   Clean it up, replace all vacume lines, check AAR, ...   Aug 22 2011, 08:06 AM


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