Date: Tue, 17 Jun 2008 09:20:33 -0700
Reply-To: neil N <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil N <musomuso@GMAIL.COM>
Subject: Re: Now My Jetta conversion won't start --- :^( --- (longish)
In-Reply-To: <DD2FB89B69444D6F946CFA3B97376C21@StusLaptopPC>
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Thanks Stuart.
Booster is connected and brakes appear to work ok.
It sure schemcks of a vacuum leak, but at this point, I think the ECU
has so many fault codes, that it's forcing the engine to operate in
some default modes.
I'll keep looking for vacuum leaks though. Thanks.
Neil.
On Tue, Jun 17, 2008 at 9:16 AM, Stuart MacMillan <macgroup@comcast.net> wrote:
> Look for a big vacuum leak--brake booster, etc.
>
> Stuart
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> neil N
> Sent: Tuesday, June 17, 2008 8:00 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Now My Jetta conversion won't start --- :^( --- (longish)
>
> Hi all.
>
> This is regarding an OBD1 ABA Motronic 2.9 stock 2.0 Jetta engine I
> installed in my Westy.
>
> The ECU and wiring harness are from an automatic Jetta. Auto tranny
> TCM (trans. control module) NOT present. TB is from a *manual* tranny
> engine.
>
> I have a TB from an automatic Jetta. (2 throttle position sensors) and
> can swap it in.
>
> I have yet to hook up the OBD interface, but here's what's happening.
>
> It used to start, idle, but bog with throttle opened slowly to 1/3
> way. After a 30 sec. - few minute run, I would shut if off and try to
> restart. It would spin, "catch" a little, and sometimes start. Next
> day, it would start. Yesterday same thing, but eventually no firing,
> (catching) and no start.
>
> I replaced rotor, cap, plugs, timing belt (timing ok) well before
> yesterday. Got fresh gas half way through yesterdays trials, and
> replaced the fuel filter.
>
> Cleaned the TB, MAF, IAC, (and tried another IAC), double checked
> electrical connections. Can't find any vacuum leaks. Fuel is pumping.
> FP hotwired made no difference. Power gets to power supply relay, and
> to 12V side of the coil.
>
> I have not checked for spark yet, but checked one of the plugs. It was
> pretty black. The exhaust (to an uneducated nose) might be smelling
> rich. I can't test for power to the HOS2 sensor as engine needs to be
> running.
>
> I'll connect the OBD but will be relying on light flashes from the
> "Mal" light (aka the CEL). I don't have a VAG-COM unit.
>
> Any suggestions as to why it won't start?
>
> Does the ECU need to be cleared of error codes? i.e. would error codes
> cause a no start?
>
>
> Thanks much for any direction.
>
> --
> Neil Nicholson '81 JettaWesty "Jaco
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engine
> s
> http://web.mac.com/tubaneil
> http://tubaneil.googlepages.com/
>
>
--
Neil Nicholson '81 JettaWesty "Jaco
http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/
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