Let's start from the beginning. Initially, I had problems starting the engine: shaking, misfiring, and unstable operation. The manual showed the fuel pressure in the system. First, I replaced the fuel injection pump, which helped for 3,000-4,000 mph. After that, it completely stopped starting. A quick study revealed that the in-tank pump wasn't working. I replaced the fuel injection pump. Then the same thing happened with the fuel injection pump. I replaced the fuel injection pump control unit. It worked for 1,000-2,000 mph. Now, when driving, there are misfires and low fuel pressure in the system. The fuel pressure sensor is damaged. Injectors can't fail like that. What should I do?

This just started about a month ago. Car starts normally until i buy fuel (petrol) into the tank then it wont start till after like 5-10 minutes. After which, everything becomes normal till next fueling. I suspected that the fuel tank could be dirty, but found it clean when it was opened recently. Please someone should help with possible solution(s)

When accelerating at all exspecially under any load my onboard computer indicates my fuel consumption going through the roof as high as 99l/100k and one know why this may be

There's still no hum after the replacement. So now I'm thinking it's a fuse. Reversed polarity with a dead cell battery, got new battery now. Everything thing is in working order as in lights, windows,radio, signals,wipers, etc. Just cranks with no start...

I put in new fuel pump new hpfp good frp but injectors not delivering fuel tested harness only 2.5v at injectors

About one year ago my Passat would crank over but not start. Since then I’ve had the fuel filter, battery, crank sensor and additional warranty issues fixed. I’ve had it into specialized Volkswagen mechanics and the dealer ship in about 8 times total. No one can figure out why the car intermittently does not start because there is no fault reading. It has happened during warm and cold days, right after driving and when starting up the first of the day. And ideas would be greatly appreciated, thanks.
John

I have 2004 VW Passat gls 1.8L w turbo , my car is cranking but not starting we switched out the relay and did a new fuel pump , before it started not turning over we would have to start it by pressing the gas to get the engine to start now it won’t start at all we cleaned the MAF sensor with the cleaner we scanned the car and the codes popping up were for MAF , Lean bank and EVAP code there was a hose with a hole but we replaced that as well and car still won’t start

Is it possible that for my fuel pump module to trigger the epc light and it also feels like lose of power, mine is a 1.8 turbo gas

Engine Weakness When the fuel tank is opened,
Sometimes also automatically engine off And it is difficult to operate again. Please let me know what is the problem and how to solve it. Thanks

The car has no power, sometimes it runs great and sometimes it doesn't and sometimes it starts to run really well up to over 4000rpm and it seems to jerk... what's new: vacuum hoses, maf sensor, turbo, fuel pressure regulator, n75, lambda before the catalytic converter, fuel filter, spark plugs... I've been dealing with this for a year and I can't figure anything out

Fuel pumps, overheat and turn the car off after 15 minute driving , I find out that the fans are not working but the fuse is ok. The fans are OK also. I’m just guessing the temperature sensor is bad but I couldn’t find the location for test the connector

Change the fuel pump still no fuel to fuel rail

It cuts the fuel while on a last quarter gage and use more fuel in few kilos

Trying to locate the relay box and witch one to change

I get only 330miles of 75liters of fuel
Is my car consuming more