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Author Topic: Mk1 fuel pump?  (Read 1022 times)

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Scott

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Mk1 fuel pump?
« on: June 09, 2006, 08:07:23 PM »
I am running out of ideas on how to fix the coupe, and I lack the propoer tools to test it so I am just going to start replacing likely suspects until it is running again... these are my likely candidates in order of precendece, if you have any of the following, let me know:

Mk1 fuel pump (82 Jetta)
CIS-E knock box
CIS-e fuel distributor
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cabb

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Re: Mk1 fuel pump?
« Reply #1 on: June 09, 2006, 08:12:21 PM »
Quote from: "Colorado16v"
I am running out of ideas on how to fix the coupe, and I lack the propoer tools to test it so I am just going to start replacing likely suspects until it is running again... these are my likely candidates in order of precendece, if you have any of the following, let me know:

Mk1 fuel pump (82 Jetta)
CIS-E knock box
CIS-e fuel distributor



none of those  :rolleyes:
can you hear the fuel pump? if not than check all relays and plugs and such

al so how do you know it is not getting fuel
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cabb

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Mk1 fuel pump?
« Reply #2 on: June 09, 2006, 08:14:00 PM »
spray some starting fluid in the intake and see if she fires
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Jesus

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Mk1 fuel pump?
« Reply #3 on: June 09, 2006, 08:14:25 PM »
The pump can be running and the engine can still be getting fuel and that doesn't mean that the pump is good or that it's not the culprit.  CIS-E operates on a very high fuel pressure..and when that high pressure isn't there it acts funky.
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Scott

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Mk1 fuel pump?
« Reply #4 on: June 09, 2006, 08:26:56 PM »
Quote from: "cabb"
spray some starting fluid in the intake and see if she fires


It starts with no problem, and it idles damn near perfectly... BUT when you try to accelerate it has the following symptoms:

1 - sounds like it is underwater
2 - will not rev past 3k and takes almost 5 seconds to get here
3 - if you hold it at 3k for more than a few seconds it will stall
4 - blackens the plugs BAD... as if it was running rich!

I have a brand new coolant temp sensor, o2 sensor, and I swapped out the ignition distributor, and double checked the timing... none of those did anything. I also unplugged the DPR on the fuel dizzy... nothing...

No vacuum leaks, intake boot is new, all hose clamps are tight, sprayed carb cleaner all over looking for vacuum leaks... so like I said.... I am running out of suspects!
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Scott

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Mk1 fuel pump?
« Reply #5 on: June 10, 2006, 06:49:11 AM »
no other thoughts based on the symptoms?
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punkrider99

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Mk1 fuel pump?
« Reply #6 on: June 10, 2006, 06:55:40 AM »
are the plugs wet?
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Scott

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Mk1 fuel pump?
« Reply #7 on: June 10, 2006, 07:00:31 AM »
Quote from: "punkrider99"
are the plugs wet?


no just carbon... chunks of carbon...
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Jesus

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Mk1 fuel pump?
« Reply #8 on: June 10, 2006, 07:08:15 AM »
Quote from: "Colorado16v"
Quote from: "punkrider99"
are the plugs wet?


no just carbon... chunks of carbon...


Hmm..that certainly doesn't indicate a lean condition
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Scott

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Mk1 fuel pump?
« Reply #9 on: June 10, 2006, 07:09:22 AM »
Quote from: "Jesus"
Quote from: "Colorado16v"
Quote from: "punkrider99"
are the plugs wet?


no just carbon... chunks of carbon...


Hmm..that certainly doesn't indicate a lean condition


I know... and the day it started screwing up you could smell gas very easily. I have not noticed it again since then though.
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Scott

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Mk1 fuel pump?
« Reply #10 on: June 10, 2006, 07:09:57 AM »
Although, if the pressure is not high enuogh to atomize the fuel properly, I guess it could cause the same symptoms, right?
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Jesus

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Mk1 fuel pump?
« Reply #11 on: June 10, 2006, 07:15:41 AM »
Have you tried another coil?

Also have you pulled a plug, cranked the engine, and observed the spark to see if it's good and strong?
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Mk1 fuel pump?
« Reply #12 on: June 10, 2006, 07:19:52 AM »
Quote from: "Jesus"
Have you tried another coil?

Also have you pulled a plug, cranked the engine, and observed the spark to see if it's good and strong?


no and no
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Mk1 fuel pump?
« Reply #13 on: June 10, 2006, 07:22:17 AM »
Give that a try first.

And I just threw away two coils last night when I was unpacking some boxes  :mad:    :mrgreen:
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Mk1 fuel pump?
« Reply #14 on: June 10, 2006, 07:23:33 AM »
Quote from: "Jesus"
Give that a try first.

And I just threw away two coils last night when I was unpacking some boxes  :mad:    :mrgreen:


I might still have one laying around... if not I know where Greg's house.... errr.....  I mean A-1 is...  :mrgreen:
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cabb

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Mk1 fuel pump?
« Reply #15 on: June 10, 2006, 08:44:03 AM »
i also have coil too if you need one


oh yeah i almost forgot  :rolleyes:
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Mk1 fuel pump?
« Reply #16 on: June 10, 2006, 10:39:35 AM »
Quote from: "cabb"
i also have coil too if you need one


oh yeah i almost forgot  :rolleyes:


hmmmm, is there any difference between an 8v and 16v coil?
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Mk1 fuel pump?
« Reply #17 on: June 10, 2006, 10:58:29 AM »
No
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cabb

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Mk1 fuel pump?
« Reply #18 on: June 10, 2006, 11:27:44 AM »
Quote from: "Colorado16v"
Quote from: "cabb"
i also have coil too if you need one


oh yeah i almost forgot  :rolleyes:


hmmmm, is there any difference between an 8v and 16v coil?


no......and i dooo have a 16v you know  :rolleyes:
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Scott

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Mk1 fuel pump?
« Reply #19 on: June 10, 2006, 11:34:24 AM »
Quote from: "cabb"
no......and i dooo have a 16v you know  :rolleyes:


actually I had forgotten that...
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Ironzey

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Mk1 fuel pump?
« Reply #20 on: June 14, 2006, 06:36:47 PM »
I've got a CIS fuel pump.  It's not a genuine Bosch unit but it was used only for a few hours.


P.S. Are you trying to steal my car a peice at a time?
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Scott

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Mk1 fuel pump?
« Reply #21 on: June 14, 2006, 07:04:20 PM »
Quote from: "Ironzey"
I've got a CIS fuel pump.  It's not a genuine Bosch unit but it was used only for a few hours.


P.S. Are you trying to steal my car a peice at a time?


hee hee... no not really, just want to get mine running properly. By the way, I can return your dizzy anytime you need me to.
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Ironzey

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Mk1 fuel pump?
« Reply #22 on: June 15, 2006, 05:55:39 AM »
I'm going to need it soon.  

Do you know where I can find a 9A?
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LOS

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Mk1 fuel pump?
« Reply #23 on: June 15, 2006, 03:25:20 PM »
Hmm i gave grant my extra CIS dizzy...
What about the isv?
WHat about fuel filter?  
Engine grounds?
Checked the intake boot for leaks?
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greggearhead

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Mk1 fuel pump?
« Reply #24 on: June 15, 2006, 05:13:21 PM »
When was the last time you checked the oil?  If it was running really rich for a long time, you may have filled the crankcase with some gas.
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