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EZ Gruv
King of Plaid
Joined: December 10, 2002
Posts: 8544
Location: Las Vegas
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 Posted: Sun Oct 14, 2018 11:48 am Post subject: Engine cuts out when pressing gas pedal - when cool |
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Hey All, it's been a while. 
Since I don't daily drive my bus any more, I don't have a ton of issues, but I'm having a recurring one lately.
Here goes...
The bus starts up ok, same as always. However, if I hit the gas pedal while the engine is idling, but still cool, it cuts out and sometimes cuts off completely. Once it warms up, everything is fine.
Fuel delivery issue, or something else?
My bus is a 77 Westy, with original 2.0L Type IV, with fuel injection. 262,000 original miles.
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Eric
1977 Deluxe Westfalia - 2.0L FI Type IV, Completely Original
Photographer for HotVWs, VolksWorld, AirMighty, VW Camper & Commercial, Hayburner, and more.
My Photography Page. |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51112
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sun Oct 14, 2018 12:41 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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Hi Eric, long time no see.
I'd start with a fuel pressure test and watch what it does when you open the throttle. What's the idling pressure?, does it jump when you step on the gas?
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sun Oct 14, 2018 1:56 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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since you say you don't drive it much - how old is the fuel?
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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EZ Gruv
King of Plaid
Joined: December 10, 2002
Posts: 8544
Location: Las Vegas
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| Posted: Sun Oct 14, 2018 2:29 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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| SGKent wrote: |
| since you say you don't drive it much - how old is the fuel? |
I cycled through two full tanks in June when I took it to California. The problem has been happening for about the last year.
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Eric
1977 Deluxe Westfalia - 2.0L FI Type IV, Completely Original
Photographer for HotVWs, VolksWorld, AirMighty, VW Camper & Commercial, Hayburner, and more.
My Photography Page. |
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EZ Gruv
King of Plaid
Joined: December 10, 2002
Posts: 8544
Location: Las Vegas
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| Posted: Sun Oct 14, 2018 4:07 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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I should probably add that I have a Pertronix II installed. Forgot I did that a while back.
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Eric
1977 Deluxe Westfalia - 2.0L FI Type IV, Completely Original
Photographer for HotVWs, VolksWorld, AirMighty, VW Camper & Commercial, Hayburner, and more.
My Photography Page. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50331
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| Posted: Sun Oct 14, 2018 4:24 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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| Maybe spray some choke cleaner down around the flap in the AFM followed by some kind of lube. |
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EZ Gruv
King of Plaid
Joined: December 10, 2002
Posts: 8544
Location: Las Vegas
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| Posted: Sun Oct 14, 2018 8:10 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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A quick video, gives you the gist of the issue.
Link
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Eric
1977 Deluxe Westfalia - 2.0L FI Type IV, Completely Original
Photographer for HotVWs, VolksWorld, AirMighty, VW Camper & Commercial, Hayburner, and more.
My Photography Page. |
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SGKent
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sun Oct 14, 2018 9:45 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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have you done a smoke test for vacuum leaks, and also tested the booster to be sure it isn't leaking? Check the TSII to be sure the threads are clean and that the wire is in place.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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EZ Gruv
King of Plaid
Joined: December 10, 2002
Posts: 8544
Location: Las Vegas
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| Posted: Sun Oct 14, 2018 9:47 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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| SGKent wrote: |
| have you done a smoke test for vacuum leaks, and also tested the booster to be sure it isn't leaking? Check the TSII to be sure the threads are clean and that the wire is in place. |
It's been a while since I've had to test anything on this bus. I'll dive in tomorrow and report back.
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Eric
1977 Deluxe Westfalia - 2.0L FI Type IV, Completely Original
Photographer for HotVWs, VolksWorld, AirMighty, VW Camper & Commercial, Hayburner, and more.
My Photography Page. |
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22711
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Sun Oct 14, 2018 10:36 pm Post subject: Re: Engine cuts out when pressing gas pedal - when cool |
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| EZ Gruv wrote: |
| SGKent wrote: |
| have you done a smoke test for vacuum leaks, and also tested the booster to be sure it isn't leaking? Check the TSII to be sure the threads are clean and that the wire is in place. |
It's been a while since I've had to test anything on this bus. I'll dive in tomorrow and report back. |
Maybe your AAR is leaning things out too much. Maybe not. Just a shot in the dark, but TS2s aren't usually bad at just one temp, ignition systems don't normally cut out at just one temp, fuel pressure isn't bad at just one temp.
But if your AAR is out of whack it will fuck you up when cold.
Just thinking is all. I've been told I'm not good at it, though, so fair warning.
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| Bryan67 wrote: |
| Just my hands. And a little lube. No tools. |
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