|04-03-2012, 08:48 PM||#1|
Join Date: Aug 2007
93 940 Diagnostic Help Before Purchase
I have been a long time lurker of these forums.
I finally have another option to purchase another Volvo, however, this one has a potential issue id like some clarification on.
The Volvo is a 93 940 2.3 NA with the Regina Ignition and Fuel system.
The issue with the vehicle is that there is no power when you accelerate. It falls flat on its face.
The only codes on the vehicle are for the o2 sensor. (after jumping pin 2 and pin 6).
After checking the fuel pressure with the engine running, i am only getting 28 PSI. If i 'goose' the throttle, the pressure will drop on the gauge. Also removing the vacuum hose from the FPR, the PSI only raises by 1 PSI.
What i am confused about is what is the correct fuel system pressure?
I was under the assumption it was 43.5 PSI?. Other places i have found online state between 28 and 44 PSI.
So i can i safely assume the pump is the culprit IF the system pressure is supposed to be 43.5 PSI? I would also like to assume the fuel pressure on this regina fuel system should increase as the throttle is opened?
I have 20" vacuum, 155 PSI on all cylinders after a compression test, the Volvo has a new timing belt and all new ignition wires and plugs (denso).
The only 2 tests i did not do are a fuel pump amp test as well as a voltage drop test on the feed and ground side of the fuel pump.
Thanks for any feed back guys and gals!