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Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8822
Experience:  I am ASE Master Truck Certified.
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My 2006 peterbilt c-15 engine....showing check engine light

Customer Question

My 2006 peterbilt c-15 engine....showing check engine light on.....the code flashing is as follows: 9-4-.-.4-4...what could this be? ...thanks...
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 1 year ago.

Thanks for asking your question and requesting me. I will try and help you out.

Code 94 is defined as an intake valve actuator fault on cylinder 5 or 6. Normally the problem is a faulty Iva solenoid. I see this a lot. I would try changing the solenoids first. If that does not fix the problem. Then the Iva housing is faulty.

There is not a code 44. Sorry.

Please reply back if you need more help or have more questions. I am happy to assist.

Expert:  Cat Man replied 1 year ago.

Hey. I just wanted to see how things were going. Please let me know if you need more help. I am happy to assist. If my information was helpful, please leave a good or higher rating so that I receive credit. Thanks.

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