| tradesman |
Fri Jun 13, 2008 8:26 pm |
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| I have this 1990 Jetta Gl, and I have been trying to get it to run and have had no luck at all. The car had sat in a garage for ten years, and only has 65k miles on it and is in really good shape. I have no idea why the previous owner parked it. I have replaced both fuel pumps, and put in some fresh fuel, and have replaced the coolant temp sensor and the ignition switch. And it still will not start. It will run for a second or two, and immediately quit. Occasionally it will stay running a bit longer but chugs along like its running on one cylinder, and the instant you give it some gas it stalls immediately. If anyone has any ideas, or tips I would be totally grateful. this car has been sitting in my yard for a year now and I would really like to drive it... |
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| forenglishpressone |
Tue Jun 17, 2008 9:47 pm |
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Try here.
http://www.vwvortex.com/
There's more water cooled information in those forums. Samba seems geared more towards the aircooled crowd.
FWIW, my $$'s on a vacuum leak with your ride. Digifant can be a PITA. Good luck.
-J |
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| dwilloughby |
Wed Jun 25, 2008 6:29 am |
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| I had a similar problem, ended up being the fuel pump relay. |
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| 63 type 1 |
Sun Jun 29, 2008 8:42 pm |
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| Check the T Belt. Also look at the ground wires going to the intake near the coil area. |
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| Franklinstein |
Sat Jul 05, 2008 9:09 am |
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I have a 93 VW Fox 1.8 8v motor on a 79 camper bus. Original tranny. PO did it but I love it. Yes I am jealous of you true airheads but I have a radiator and real heat! I will take any complete 2.0 FI motors from a 76-79 bus if anyone wants to send me one for free :wink:
oh... I will pick up IF I HAVE TO.....
I have an occasional problem with identical symptoms to yours. Thankfully the fix is quick and simple for me.
Once in a while the tube comes off that connects the airfilter housing/airflow sensor and the throttle body.
SYMPTOM: The engine dies suddenly when I am driving or just won't start from cold. I can turn the key and it will turn over for a second and sputter and die. If I push the gas pedal down while turning the key it turns over for a second then really sputters and dies.
?What does this mean?
Well the fuel injection computer needs input from many sensors to coordinate fuel flow to the motor. The computer will stop the flow of fuel to the motor if the airflow sensor is blocked or bypassed (as in my case since the tube is coming off). No air flow=no fuel to engine.
A few turns of a short phillips head screwdriver is all I need to reconnect the clamp that holds the tube to the air filter housing. "Yes Mr. State Trooper, Bob is my uncle."
?What does this mean to you?
Check the entire air intake system on your vehicle!
Go around front and and prop up the motor compartment lid so it does not bust you one. (If you get this reference then good for you all.)
1. Open the air filter housing. Do you find any rodent nests or nuts in there? That would block air flow for sure. Check any tubes that let air into the air filter housing. These should be free from obstruction. Use a shop vac to clean out the whole thing. Clean off the filter or change it if you have the bread.
2. Past the filter should be the air flow sensor. This is a flap which moves in response to the air flowing past it to the engine. The flap should move freely from side to side, and come to rest at one side when not being touched , be gentle. It sends a signal to the computer so it knows how much fuel to send to the motor. Remember, no air flowing=no fuel sent.
3. Check the fuel injection system harness wires attaching to the air flow sensor. Are they intact or did Gremlins chew them? Is it firmly plugged in? If you detach th plug you will see the connector pins on the sensor. You can test these with a 20 buck multitester but this is beyond my scope here, check the web site listed in the prior post or get a repair manual for specifications.
4. Check the tube connecting the air filter housing/air flow sensor to the throttle body. It should be firmly connected with clamps on both ends. There should not be cracks or holes in this tube. Any openings here will mean the air flow sensor is being bypassed. It needs to be airtight. Duct tape might work in a pinch. Be sure any hoses attached to it are firmly attached.
This offers you some direction, give it a try! This advice is based upon my engine and its quirks, yours should be very similar based upon year.
Bill
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