engine code
#2
RE: engine code
secondary air injection (AIR) system - incorrect flow detected fault to look for are AIR pump, AIR valve, AIR hoses for splits/leaks
Various - Audi, Mercedes Benz, BMW, Volvo - Mid 1980's Bosch CIS-E systems
This feedback controlled continuous injection system has a "black box" mixture control unit mounted directly on top of the fuel distributor.
NOTE: Do not puncture wires on these applications! Back probe connectors so as not to damage shielded wires -- puncturing the O 2 sensor wire on these cars will ground the sensor signal. The computer signal to the mixture control unit is a varying current (milliamps) -- not voltage. High current is a lean command and low current is a rich command. Throttle switches are unique in this application as well -- a three way switch -- idle/off/WOT (wide open throttle).
Fuel system pressures, filters and contamination should be checked according to the manufacturer's specs. (Replacing a fuel distributor is expensive.) Some applications have a fuel pre-pump located in-tank. If the customer complains of poor hot driveability, suspect a pre-pump problem.
Vacuum leaks are not uncommon in this application, with injector (O.D.) seals a prime area. These European import systems do not fail often, but when they do, some of their peculiarities make them difficult for the uninitiated.
Various - Audi, Mercedes Benz, BMW, Volvo - Mid 1980's Bosch CIS-E systems
This feedback controlled continuous injection system has a "black box" mixture control unit mounted directly on top of the fuel distributor.
NOTE: Do not puncture wires on these applications! Back probe connectors so as not to damage shielded wires -- puncturing the O 2 sensor wire on these cars will ground the sensor signal. The computer signal to the mixture control unit is a varying current (milliamps) -- not voltage. High current is a lean command and low current is a rich command. Throttle switches are unique in this application as well -- a three way switch -- idle/off/WOT (wide open throttle).
Fuel system pressures, filters and contamination should be checked according to the manufacturer's specs. (Replacing a fuel distributor is expensive.) Some applications have a fuel pre-pump located in-tank. If the customer complains of poor hot driveability, suspect a pre-pump problem.
Vacuum leaks are not uncommon in this application, with injector (O.D.) seals a prime area. These European import systems do not fail often, but when they do, some of their peculiarities make them difficult for the uninitiated.
#3
RE: engine code
Ok WTF was that^^ all about "Fuel Distributer" cars havent had those since like the early 80s
The only thing that applies is the actual code description
There are a few things it could be but if someone has a Vag-Com near you they can do a output diagnostic check to see if the pump is working
The only thing that applies is the actual code description
There are a few things it could be but if someone has a Vag-Com near you they can do a output diagnostic check to see if the pump is working
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08-13-2017 09:24 AM