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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 4679
Experience:  Owner at DJ Wilson
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Fault code 14 & 65 for a 2007 Isuzu FSS550, Isuzu FSS550

Customer Question

Fault code 14 & 65 for a 2007 Isuzu FSS550
JA: What's the make/model/year of your truck? Engine type?
Customer: Isuzu FSS550 2007, 6HK1 7.8L turbo
JA: Are you fixing your truck yourself? What have you tried so far?
Customer: I have aquired the fault codes 14 & 65, I just need to know what they are
JA: Anything else you want the truck mechanic to know before I connect you?
Customer: no
Submitted: 2 months ago.
Category: Medium and Heavy Trucks
Expert:  Daniel Wilson replied 2 months ago.

Hi my name is***** will be glad to try to help. What did you use to pull these codes?

Expert:  Daniel Wilson replied 2 months ago.

DTC 14 is for Cam sensor. Check the sensor wiring and connector pins for damage and if okay, replace the faulty sensor.

Expert:  Daniel Wilson replied 2 months ago.

DTC 65 is low boost pressure abnormal. Check the sensor harness and connector pins or for a faulty sensor. If okay check for leaks in the turbo intake piping, turbo problems and actual low boost pressure. Let me know

Customer: replied 2 months ago.
i joined 2 wires together and watched the service light long and short flashes to get the numbers. Boost is running at 20psi. Can you tell me where the cam sensor is?
Customer: replied 2 months ago.
Can i add my mistake, it it 24 and 65, not 14 and 65 sorry
Customer: replied 2 months ago.
Hello???
Customer: replied 2 months ago.
You've sent me a request for feedback but you haven't replied to my past 3 messages????
Expert:  Daniel Wilson replied 2 months ago.

Hello. Experts are not employees of the site. I help on here in between jobs as time allows. I believe those requests are auto generated. I was away for the holiday weekend. I hope you and yours had a great New Years. Ill look up 24 for you... bare with me

Expert:  Daniel Wilson replied 2 months ago.

DTC 24 is the accelerator position sensor located at the throttle pedal. Check the sensor hand wiring harness. I have a shop manual I can help with for a premium service . If interested I will send over the offer.

Expert:  Daniel Wilson replied 2 months ago.

Once the offer is accepted just post accepted offer in a reply so I will be notified to post the link for you on my next login. We can post back and forth here as needed as well.

Customer: replied 2 months ago.
Is the manual for an FSS550 2007 or just the 6HK1 engine?
Expert:  Daniel Wilson replied 2 months ago.

Its the engine manual

Customer: replied 2 months ago.
Thanks but I have several already, I really need a full workshop manual for an FSS550 2007, also the DTC65 that indicates low boost, the turbo is performing at its usual 19-20psi and I don't think there are any pressure sensors on the output line of the turbo

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