RE: [alfa] Bosch Spider won't start

["Jeff Greenfield" <alfaguy@xxxxxxxxxxxx>]

A couple of things come to mind ...

Check the RPM and TDC sensors, one could be bad and could cause this.

Check the Main relay to be sure that there is power coming out of it. I've
seen more than one of these fail. (Although I think you would lose power to
the fuel pump relay as well).

Bad ground somewhere? Check all the grounds (and power inputs) to the ECU at
the connector. There is a pretty good schematic in the manual that show
which pins go where.

ECU's don't fail often, but I have seen it happen. If you know someone
nearby with a similar year car, swap one with the other and see what
happens.

You are sure that you have spark and no injector pulse right? Post what you
find and we'll go from there.

Jeff

-----Original Message-----
From: owner-alfa@domain.elided [mailto:owner-alfa@domain.elided] On Behalf Of
Wayne Abbott
Sent: Tuesday, June 08, 2004 10:24 PM
To: alfa-digest@domain.elided
Subject: [alfa] Bosch Spider won't start

Hi,
Here is the story.  Last Tuesday as I was backing down the drive way I
thought
"The Spider sure has been running well lately".  Fast forward to the same
Tuesday after work.  Turn the key and the Spider starts instantly.  Pull out
of the parking lot and head for home.  Somewhere around the fourth hill and
dale the engine stopped running.  I coasted down the hill and managed to
pull
over to the right and get the car off the roadway.  I could not get it to
restart.

Since then I have checked:

Fuel in the tank
Fuse under parcel shelf ok
fuel flow out of tank pump
fuel flow out of main pump (all the way to fuel rail)
good spark, new plugs(just in case)
ignition signal makes it to L-Jetronic ecu
10.9 volts during cranking at L-Jetronic ecu

The complete 11 program, multi-step Bosch L-Jetronic tester sequence as
detailed in the troubleshooting section of the factory workshop manual.

the bosch tester says nothing wrong, still no start

The injectors just won't pulse.

Swapped in an 83 L-jetronic box

Still No Start

Any and all clues and suggestions are welcome.

Thanks
Wayne Abbott
86 Spider Graduate  (temporarily hibernating out of season)
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