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Have a 04 Acert c13 getting code 94. 2004 sterling 9500 with…

Customer Question
Have a 04 Acert...

Have a 04 Acert c13 getting code 94

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2004 sterling 9500 with cat c13

Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?

Yes and have fixed a few exhaust leaks since truck is low on power

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts.

Ok

Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you?

I did also have to change the Iva oil pressure sensor

Submitted: 3 years ago.Category: Medium and Heavy Trucks
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Answered in 26 minutes by:
7/1/2019
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
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Thanks for asking your question. I will try and help you out.This code indicates a fault with the 5/6 cylinder Iva housing. This fault can be caused by a faulty Iva solenoid or faulty Iva housing.Please reply back if you need more help. I am happy to assist.
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Customer reply replied 3 years ago
Would this cause low power under load
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Oh yes it will. When this code is active. The engine power will be derated.
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Customer reply replied 3 years ago
Without doing the cat Iva test on the truck is there any other way to test to see if it’s a solenoid or housing
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Unfortunately not. Sorry. Cat ET is needed to troubleshoot.
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Customer reply replied 3 years ago
Ok having a hard time getting it in to a shop
Customer reply replied 3 years ago
Had the solenoid test and actuator test ran everything came back good
Technician: Cat Man, Cat Engine Expert replied 3 years ago
What code did they find?
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Customer reply replied 3 years ago
Just the 94 it said actuator fault
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Thanks for the information.
Most likely a faulty Iva housing. They can be intermittent
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Customer reply replied 3 years ago
Do u think it could be faulty wiring
Technician: Cat Man, Cat Engine Expert replied 3 years ago
It’s possible. It depends on if the code was for the solenoids or the Iva housing. Flash code 94 is for all the components. ET can see the exact code.
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