Date: Fri, 20 Jul 2007 21:25:30 -0700
Reply-To: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject: Re: Will not start question
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There are two ways to see if the injectors are being fired...
The first one -super easy, takes a second or two - NOID light...
A little light you plug onto the injector wire - you crank the engine - the
light flashes, you know the ecu is firing the injectors, or at least that
one.
The other way is to hang them outside the engine and watch them spray. I
wouldn't do that - too messy and too much trouble - if you need to see the
spray pattern , it's useful though, it's in Bentley.
Usually the injectors are being fired in a no-start situation, tho it is
possible of course.
Noid light, that you get from a FLAPS ....( or I could/should sell them )
.....
Takes almost zero effort to know immediately that the ECU is firing the
injectors.
On a 1.9 wbxr -think about the coolant temp sensor - it's a critical input -
if the ECU doesn't' see that sensor, it will not start. I've found corroded
connections, weak ones etc there.
It has to get a good connection there. I have not found many bad temp
sensors.
You could also just pop another one on for a quick test -it doesn't have to
be screwed into the cooling system for a quick 'will it start now' test.
Just plug it onto the wires going to the ecu.
You should have a known good one in your box of road trip emergency parts.
It's a small part, it's critical, and not hard to carry in the van at all
times.
You could also just have it flooded. Look at one spark plug , if it's wet
...either no ignition is happening, or it's just flooded.
I assume you've checked that there is ignition happening., spark coming out
of the coil is the quick-easy test. Everyone who works on their own car
*really* should have a Remote Starter Switch - you hook that up, you can
crank the engine and be right by it while you test for spark out of the
ignition. I even put a 'starter trigger' wire near the engine to be able to
easily connect a remote starter switch. Having one of these is SO useful
it's silly not to have one. One can even rescue you if your ignition switch
gives out, which they do.
Back to 'might be flooded' - You can unflood a fuel injected engine by
cranking continuously with wide open throttle ...BUT ....the air flow meter
keeps it from really being a wide open air path - for that you'd have to
temporarily remove the air flow meter .....to get it unflooded by cranking
with wide open throttle. Sometimes you can pull an air boot hose for the
same affect.
I have boxes of 1.9 wbxr parts, like known-good 1.9 ecu's, should you need
any.
Scott
www.turbovans.com
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Randy C. Nunes
Sent: Friday, July 20, 2007 7:54 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Will not start question
My 84 westy will not start. The fuel pressure is ~ 36. The injectors act
like they are not grounded, however, went through and cleaned all the FI
grounds just in case, still would not start. Has anyone ever experienced
this problem or are the gremlins just getting inside my head.
Randy
