I have just renewed the fuel filter, my old filter was fitted with the flow arrows pointing in the wrong direction. I have fitted the new one correctly. Having fitted the filter I turnex the engine until there was fuel in the system. The engine staRted but now runz poorly, really jerky on acceleration and normL running. It sounds as if it's missing on one cylinder but just wondered if it could be anything else. Maybe throttle position sensor.
Clean the fuel injectors
SOURCE: Struggling to Accelerate immediately after starting engine
Definitely not the fuel pump. A fuel pump will either work, or it wont. It could be a fuel filter, though unlikely, again if it was clogged there would be nothing. Could be spark plugs/wires, a faulty coil pack, Could also be a handful of sensors (o2, MAF, are a few that come to mind). Does it have a manual transmission? If so can the car be started without engaging the clutch (in neutral)? If so check the 2 clutch sensors attached to the clutch pedal.
Probably a sensor. Go to Advanced Auto parts and have them pull the code. Then google it. Or check out Forums.vwvortex.com
SOURCE: 1980 VW rabbit, manual/fuel injection: I am
it starts from cold because the auto choke is on ,allowing a richer mixture ,try removing the sender unit in the tank and seeing if the connection from the pump to the outlet connection is ok or leaking causing a loss of fuel pressure
SOURCE: I keep getting a PO221 code reading on my OBD-II
You need to test voltage and ground if you have less than 5 volts you have a problem with voltage not a problem with the throttle position sensor you may have gum build up in the throttle plate not allowing the plate to go to the full close positions and that can throw the same code you are getting. Also if you have a reading of .2 ohms or more from battery post to ground or to engine to ground or to engine ground to throttle to ground that could be your problem, after testing these items then next step is testing computer. But try cleaning the throttle assembly plate inside the backside and in the mouth where the plate goes. Also the Wide-open and idle position must be set when replacing the sensor or you will get the same error.
Testimonial: " I can't thank you enough. It does make great sense. I can do this cleaning of the throttle body. Again, thanks. I'll give it a go."
SOURCE: 1989 VW cabriolet, fuel odor, engine stalls in 1st and 2nd gear
Ignition system sounds probable on vhicle when everything gets warmed up. High pitched hum could be bad tire or worse bearing.
Testimonial: "Thank You for your response. The huming sound is present on idle from start-up,tires have just been replaced, would fuel pump be suspect?"
SOURCE: Throttle/Pedal Position Sensor/Switch B Circuit Range Performance
there is no adjustment on these tps's it's a drive by wire system. If you don't know the vehicle, dont post!
there's 2 sensors contained in the pedal sensor, and one on the throttle plate shaft, more often than not, it's the pedal sensor, and if you replaced that, it's the other one or a loose connection. did you reset the computer after replacing the pedal?
Remove the "hairpin" clip retainers to access the fuel line fittingsThe
inline reservoir type fuel filter should last the life of the vehicle
under normal driving conditions. If the filter does need to be
replaced, proceed as follows:
Fuel filter location and connections–2002–200637 views
Usually answered in minutes!
×