My 96 roadmaster has a misfiring problem i changed spark plugs the wires put new gas pump and filter ,but now is not the same it starts shaking and the left side or the exhaust makes like a misfing noise but the right side doenst what can it be

Hi,

Your vehicle's engine emission system is monitored by the On-board Diagnostic (OBD) computer.

Misfires can be caused by any number of circuits ranging from MAP, TPS, HO2, Injectors, Vaccuum leaks....and so on.....and so on.....

The misfire you speak of will have triggered the appropriate fault codes which will be stored in memory. As there could be numerous causes for this condition, you really should have your codes read by your local dealership.

Checking for fault codes only takes 15-25mins (depending on experience of the technician), and will quickly identify the suspected circuit/s.


Good luck...



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With those problems your computer should be sending out error codes. If it is what are they? If it isn't then I would suspect the computer itself!