[s-cars] 94 URS4 Won't start

[Peter Golledge]

I'd start with the basics:

1. Battery voltage good?  Low volts waking up old motor after a month can
be problematic
2. Do you have spark?  Cheap spark tester from HF or similar can make this
less likely to shock you than hold a lead.  Crank/Cam sensors can test OK
but it only takes a little corrosion on the connectors to stop the low
voltage signals and then... no spark.  Contact cleaner is your friend.
Fuse for Coils good?
3.  Do you hear the FP priming at IGN on?  If not, check the fuse and try
bypassing the relay to see if it runs manually. (Can also try to run on
ether)
4.  If you have spark and fuel, check fuel pressure.   A bit more complex
since you need to obtain/make an adapter to tap into the line.
5.  Check the airbox for critter nests... BTDT with snowmobiles, no start
with filter/nest combp

On Fri, Nov 25, 2016 at 4:19 PM, Gary Meier <garymeier65 at gmail.com> wrote:

> The car sat for about a month while I recovered from back surgery; now it
> cranks but won't fire/start. I had a similar problem about a year ago. At
> that time I replaced the fuel pimp. crank position sensor and the cam
> position sensor. When testing the system components I get a reading of 960
> ohms on the crank position sensor and the RPM sensor. Tests for the cam
> position sensor indicate that it is functioning properly. Does anyone have
> a way to test the fuel pump relay and other fuel supply components without
> use of the VW special tools; or do you have any suggesti0ons on what to
> check.
> Gary Meier
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