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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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 Posted: Tue May 03, 2022 11:01 am Post subject: Hot Start issue (air-cooled) |
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The other day I drove to the gas station fill up and won't start. It always restarts after sitting about 10-15 minutes but never sooner. It seems like it's flooded / injectors are leaking? Which injectors are available / best upgrade?
2.0 air-cooled
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83 Air-cooled 2.0 Tin Top |
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Gauche1968
Samba Member
Joined: April 13, 2006
Posts: 1562
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| Posted: Tue May 03, 2022 11:29 am Post subject: Re: Hot Start issue |
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Mansispeed injectors solved my hot start problem.
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1984 Vanagon GL
1984 Vanagon Westy |
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 10281
Location: Mt Lemmon, AZ
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| Posted: Tue May 03, 2022 11:58 am Post subject: Re: Hot Start issue |
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If this were a WBX it would be the classic symptom of a failed Temp II sensor.
Do air-cooleds have a sensor that tells the ECU whether the engine is cold or hot? |
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jlrftype7
Samba Member
Joined: July 24, 2018
Posts: 4712
Location: Chicago
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| Posted: Tue May 03, 2022 12:23 pm Post subject: Re: Hot Start issue |
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| Ahwahnee wrote: |
If this were a WBX it would be the classic symptom of a failed Temp II sensor.
Do air-cooleds have a sensor that tells the ECU whether the engine is cold or hot? |
Yes, I thought it was by Cyl #3?
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'68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
‘84 Tin Top - Hilga....Auto |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2743
Location: Philly, mang
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| Posted: Tue May 03, 2022 12:37 pm Post subject: Re: Hot Start issue |
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| Ahwahnee wrote: |
If this were a WBX it would be the classic symptom of a failed Temp II sensor.
Do air-cooleds have a sensor that tells the ECU whether the engine is cold or hot? |
they have a Hall Sender, and this was the symptom i faced with a failing Hall Sender.
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1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic |
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zimflux
Samba Member
Joined: September 30, 2015
Posts: 233
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| Posted: Tue May 03, 2022 12:41 pm Post subject: Re: Hot Start issue |
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| Mateo83 wrote: |
The other day I drove to the gas station fill up and won't start. It always restarts after sitting about 10-15 minutes but never sooner. It seems like it's flooded / injectors are leaking? Which injectors are available / best upgrade?
2.0 air-cooled |
To clarify, it won't fire or it won't crank?
Regardless, if you think your injectors are leaking, send them out to be cleaned for minimal cost.
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84 Westy w/ 2.1 MV |
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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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| Posted: Wed May 04, 2022 9:01 am Post subject: Re: Hot Start issue |
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wont fire. Cranks fine, Starts once it cools down.
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83 Air-cooled 2.0 Tin Top |
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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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| Posted: Wed May 04, 2022 9:02 am Post subject: Re: Hot Start issue |
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| Gauche1968 wrote: |
| Mansispeed injectors solved my hot start problem. |
he only does water cooled stuff.
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83 Air-cooled 2.0 Tin Top |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52616
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| Posted: Wed May 04, 2022 10:46 pm Post subject: Re: Hot Start issue |
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| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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| Posted: Thu May 05, 2022 9:09 am Post subject: Re: Hot Start issue |
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| Wildthings wrote: |
| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
These sound like temporary solutions to get the van back up an running but not long term solutions to fix the issue at hand.
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83 Air-cooled 2.0 Tin Top |
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 10281
Location: Mt Lemmon, AZ
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| Posted: Thu May 05, 2022 9:14 am Post subject: Re: Hot Start issue |
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| Mateo83 wrote: |
These sound like temporary solutions to get the van back up an running but not long term solutions to fix the issue at hand. |
I read them as good diagnostics that may tell you specifically what has failed. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52616
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| Posted: Thu May 05, 2022 9:35 am Post subject: Re: Hot Start issue |
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| Ahwahnee wrote: |
| Mateo83 wrote: |
These sound like temporary solutions to get the van back up an running but not long term solutions to fix the issue at hand. |
I read them as good diagnostics that may tell you specifically what has failed. |
Yep quick and easy diagnostics. No looking in the manual for wiring diagrams and specs, or even pulling out the VOM at all. |
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VeeDubn
Samba Member
Joined: May 31, 2019
Posts: 165
Location: Olympia, Washington
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| Posted: Thu May 05, 2022 9:36 pm Post subject: Re: Hot Start issue |
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We push started our 1980 2.0 aircooled around the country several times before finally installing a hard start relay - solved the problem for us. Lots of fond road trip memories though  |
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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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| Posted: Fri May 06, 2022 10:55 am Post subject: Re: Hot Start issue |
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| VeeDubn wrote: |
| We push started our 1980 2.0 aircooled around the country several times before finally installing a hard start relay - solved the problem for us. Lots of fond road trip memories though |
I was getting ready to ask a stranger at the gas station to help try to push start
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83 Air-cooled 2.0 Tin Top |
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brickster
Samba Member
Joined: January 05, 2004
Posts: 602
Location: CO, USA
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| Posted: Fri May 06, 2022 11:06 am Post subject: Re: Hot Start issue |
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| Mateo83 wrote: |
| These sound like temporary solutions to get the van back up an running but not long term solutions to fix the issue at hand. |
Help us help you. Read this and conduct the tests within.
Ask us specific questions about the process if you get stuck. Once you go though it, I guarantee you will find it empowering and we will be better able to assist you. |
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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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| Posted: Mon May 09, 2022 9:00 am Post subject: Re: Hot Start issue |
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| Wildthings wrote: |
| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
Grounding temp sensor didn't work.
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83 Air-cooled 2.0 Tin Top |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2743
Location: Philly, mang
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| Posted: Mon May 09, 2022 9:09 am Post subject: Re: Hot Start issue |
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| Mateo83 wrote: |
| Wildthings wrote: |
| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
Grounding temp sensor didn't work. |
you really should investigate the Hall Sender.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic |
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Mateo83
Samba Member
Joined: September 14, 2021
Posts: 647
Location: Lodi, CA
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| Posted: Mon May 09, 2022 9:42 am Post subject: Re: Hot Start issue |
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| dabaron wrote: |
| Mateo83 wrote: |
| Wildthings wrote: |
| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
Grounding temp sensor didn't work. |
you really should investigate the Hall Sender. |
Is it Sender or Sensor? I'm not finding a lot of information for either for air cooled models.
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83 Air-cooled 2.0 Tin Top |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52616
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| Posted: Mon May 09, 2022 9:48 am Post subject: Re: Hot Start issue |
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| Mateo83 wrote: |
| Wildthings wrote: |
| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
Grounding temp sensor didn't work. |
Good, its a process of elimination. Try disconnecting the CVS and see what that does. You could also put a pressure gauge on your fuel rail and see if you are getting excessive leak down after you shut your engine off. |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2743
Location: Philly, mang
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| Posted: Mon May 09, 2022 11:01 am Post subject: Re: Hot Start issue |
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| Mateo83 wrote: |
| dabaron wrote: |
| Mateo83 wrote: |
| Wildthings wrote: |
| Ground out the wire running to your TSII sensor and see how that affects hot starting. You could also disconnect the wiring plug from your cold start valve. |
Grounding temp sensor didn't work. |
you really should investigate the Hall Sender. |
Is it Sender or Sensor? I'm not finding a lot of information for either for air cooled models. |
does your distributor have points? if not, it will have a Hall Sender which has a 3 pin connector attached to the dizzy. since you are in Cali, i would imagine you have a dizzy with a Hall Sender.
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1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic |
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