Can a bad fuel injector cause a misfire?
FUEL INJECTORS: If your engine is running or idling rough, one possible problem is a plugged or bad fuel injector. This may be indicated if the misfire always seems to be the same cylinder, although a bad spark plug or wire or mechanical problems in that cylinder are other possible causes.
How to troubleshoot the Jaguar XJ-S electronic fuel injection?
If you wish to understand or troubleshoot the Jaguar XJ-S electronic fuel injection system, it is highly recommended that you obtain a copy of “Understanding Electronic Fuel Injection, Ignition and Engine Management ” by Roger Bywater and available from AJ6 Engineering.
What causes misfire cylinders 1 and 5 on X Type Jaguar?
Remove the air filter housing and check the wiring has not rubbed through the air filter support bracket the other prob may be water ingress in the engine control module. You can’t post conmments that contain an email address. – Answer the question. – If you need clarification, ask it in the comment box above.
What to do if your Jaguar XJ6 won’t start?
If your XJ6 or XJ12 won’t start, grab your voltmeter and follow this checklist. Covers checking spark plugs, coil, wires and distributor cap, ballast resistor, amplifier and distributor pick-up, fuel supply, fuel pump and relay, air flow meter, fuel injectors and ECU.
Dirty fuel injectors may cause your vehicle’s engine to misfire. This problem makes the motor feel as though it is sputtering — sending vibrations through the car. Such misfires can happen when a fuel injector problem mixes up the delicate balance between fuel and air entering the engine.
What happens when fuel injectors go bad in a Passat?
There are two main ways that your injectors can go bad. The first is for them to become clogged, dirty, or unresponsive. When this happens not enough fuel enters into your Passat’s combustion chamber. The other way is if the injectors are leaking. When they leak, they can really do some damage.
What does misfire code p0303 mean on VW TSI?
What you want to do is take the ignition coil from any other cylinder, say cylinder 3, and swap it with the coil in cylinder 2. If the misfire code moves the new cylinder (P0303), that means it’s a bad ignition coil. If the misfire stays on cylinder 2 (P0302) that means it is not the ignition coil.
What happens when a VW TSI engine fails?
If they fail open, they endlessly spray way too much fuel into the cylinder. If they fail closed, they spray zero gas into the cylinder. The end result is either too much, or not enough fuel being sprayed into the engine’s cylinder. The most notable sign of this will be cylinder misfires.
Why does my Volkswagen Passat smell like fuel?
Any gas that is not fired and sent out as exhaust ends up in the oil pan. When this happens it can decrease your Passat’s engine lubrication to the point that it’ll lock up. You will smell fuel on the dipstick. The Smell of Fuel – When your engine is getting too much fuel, your Passat can’t burn it all.