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Skyvisions
Skyvisions, ASE Certified Technician
Category: Toyota
Satisfied Customers: 14412
Experience:  Toyota Master Diagnostic
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1996 toyota t100: check engine light..misfire..spark plugs..new coil

Customer Question

have a 1996 toyota t100 had a check engine light come on told it was a misfire on the number 4 cyclinder .replace spark plugs and wires put on new coil for number 4 cyclinder what now
Submitted: 8 years ago.
Category: Toyota
Expert:  Skyvisions replied 8 years ago.

Hello,

You have many options with today's internet so Thank you for choosing JustAnswer.com.

The next step is to check compression of the cylinder you need 140 to 180 psi. Check the injector to make sure it is clicking. You need to check the pulse width of the input to the injector 3.0 ms is about normal at idle. I have seen restricted injectors on this engine. You could always swap the injector to another cylinder and see if the misfire follows the cylinder that would confirm before you but an injector. Have you checked for vacuum leaks around the intake?

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Customer: replied 8 years ago.
have not checked 4 vacuum likes but can hear clicking on that injector
Expert:  Skyvisions replied 8 years ago.

The injectors on the drivers side are reasonably easy to swap. This might be an option before buying one. Make sure you have ruled out the compression first. You used quality parts for the coil and wires and plugs?

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