Fuel Pump replacement questions

Peter Schulz pcschulz at comcast.net
Wed Oct 20 13:14:01 EDT 2004


The indigo wagon has been cursed with on/off hard starting.
The fuel pump was replaced with the newer style (smaller style) pump in 1998.

I still suspected the internal check valve as a potential culprit, which my 
mechanic confirmed with a fuel pressure test.

I sourced a newer style replacement43 mm pump, but forgot to get the 
corresponding hose.

Of course I realized this AFTER pulling the pump from the tank.

The interesting thing is that the 43 mm Pierburg replacement pump currently 
in the car uses the old style banjo fittings on the hose, instead of the 
hose clamp required by the "new" replacement 43mm pump.

I also could not figure out how to pull the Pierburg pump out of the 
adaptor sleeve to install the new replacement pump...

Of course the wiring connection are soldered to the Pierburg 
pump....crimping connectors on is easy enough, but it appears that there 
are some capacitors solder to the end of the leads...

Any advice, tips appreciated, and yes, I took photos...(of course I can't 
send them to the list)


1991 200 20v Q Avant Titan Grey
1991 200 20v Q Avant Indigo Mica
1990 CQ silver (awaiting S2 transplant)
1985 4000s Q....black and peeling CC

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