Active code MA2304-5 keeps popping up on the dashboard on the Volvo L90F. Engine is misfiring. What is the solution?

no code for that, may show misfire on plug or cyclinder ,fuel system problem. pull one wire at a time put on plug edge listen for pop. hear pop coil is firing. no pop bad wire or coil or power to coil

There is a light bulb inside the dashboard that needs to be replaced. You unscrew the dashboard and then unclip the dash cluster out from the dashboard and replace the bulb behind the check engine light slot. Should take less than a half hour. Most auto parts stores stock the bulbs.

P0300 random misfire P0302 misfire cyl 2 P0304 misfire cyl 4.
Check spark plug and wires and coils

Hi there:
Both fult codes are refer at Ignition System or Misfire.



DTC P0311 - Cylinder 11 Misfire Detected


DTC P0323 - Ignition/Distributor Engine Speed Input Circuit Intermittent


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hmm i think the problem is a siemans computer thats bolted to the inlet manifold but i cannot be sure without a look ,its throwing up code fault misfire on 1/4 or similar but it could be a coil pack so take it off and check for any cracking around the plastic insulation

This light is the check engine light, its a picture of an engine, this is to let you know that theres a problem with the performance of the engine, what happens is that the computer is always monitoring all sensors and components and when its sees something out of spec it turns on the eng light and stores a code. the code well tell what part of a system has failed, for example it may say po301 cyl # 1 misfire. this would mean that the computer has seen cylinder 1 misfring , then with some checking and testing the problem can be found why the cylinder was misfiring, the first step you would need to do is have the compuetr scanned to see what code or codes are stored. there are many autopart stores that will scan the computer for free and give you a print out, if you could get me the codes i would be able to help you further, good day.

first code means random/multiple misfire cylinder (s) detected
second code means misfire detected number 1 cylinder, third code, miss=fire number 3 cylinder fourth code misfire number 4 cylinder
causes can be spark plugs, HT leads, ignition coils, injector, wiring fault, low compression/ engine mechanical fault

check your wire harness on the top of the engine. Volvo must have bought harnesses from Mercedes. The insulation just cracks and disintegrates, then the wires short. Not good for an ignition system.Once they short It can fry the circuit for that cylinder in the computer. Does not set a code other than Misfire.

You have an engine misfire....unless you have expertise in this area you need to see your local shop as you will damage your catalytic converter if you continue to drive. An OBD II scan tool will id the cylinder to help but knowledge here is key!!