Polo 1.2 sport the car has been put on a diagnostic machine with no faults comming back but the car still wont start the oil pressure light comes on and bleeps three times . i have changed the oil pressure switch and checked all the obvious things like fuel, spark , compression , lamba , but still the car wont fire up !!!!!!! help
My vw polo classic 1.6 2001 model don't start and no spark changed coil, rotor,cap,distributor,fuel filter and fuel pump works but still don't start .Help plz BrianMy vw polo classic 1.6 2001 model don't start and no spark changed coil, rotor,cap,distributor,fuel filter and fuel pump works but still don't start .Help plz Brian
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Hi Emanuel
your polo seems to have a problem with the diesel pressure sensor,
I am sure when it loose it's power you see the check engine light on.
it should be connected to a diagnostic machine, you'll see that I am right.
good luck
Hello The
Engine and Automatic Transmission (not applicable to manual
transmissions) in this vehicles drive train are fully
electronically controlled by a computer called the PCM and TCM (Power
Train Control Module, Transmission Control Module). When a problem
like this or other drive-ability related problems occurs the computer
stores a record of the problem (there are of course some exceptions
to this, like the fuel pump, engine coolant temperature sensor and
MAF sensor for instance) in the form of a fault code in its memory,
to read these fault codes you must have the systems memory scanned
with a special tool. Once the fault code(s) are read you then must
perform the appropriate diagnostic testing to find and resolve the
problem(s)DO NOT REPLACE ANY PARTS UNTIL A TRAINED
TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD
EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always
check fuel pressure for correct spec for your make and engine type.
it could be a number of things. oil pressure switch, fuel pump relay or fuse. fuel pressure switch/regulator. something like this would help you find the fault https://www.ebay.co.uk/itm/Mercedes-Benz-MB-OBD2-CAN-BUS-Fault-Code-Reader-Scanner-diagnostic-scan-tool-UK/221097686022 just to read the fault codes.
First of all you need to access the Engine Control Module (ECM) using suitable diagnostic equipment (VAS, VAG-COM or similar) connected to the data link connector of the car, in order to pull out all DTC's memored. DTC = Diagnostic Trouble Code. Then you will bu full informed about the root cause of the problem, and you will be able to repair & replace bad pieces and reset the ECM.
The oil pump is relatively easy to change with the engine in situ if it is (commonly) at fault,
Get an oil pressure gauge with a pipe and brass fitting ready on, (borrow or buy cheap from boy racer shop), unscrew the sensor (or ask the garage to for a £5) and plug it directly into the sensor hole after you've been for a run.. When warm, mine sits about 40 at motorway speeds, ten at tickover.
My vw polo classic 1.6 2001 model don't start and no spark changed coil, rotor,cap,distributor,fuel filter and fuel pump works but still don't start .Help plz Brian
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