Low Air Mass Flow Check; Spn 132/Fmi1 - Detroit Diesel EPA07 Series 60 DDEC VI Troubleshooting Manual

31.1 SPN 132/FMI1

This code typically means the air mass flow is too low.
31.1.1

Low Air Mass Flow Check

Check as follows:
1. Check for multiple codes.
[a] If any other fault codes are present, repair them first.
[b] If only 132/1 is present, go to the next step.
2. Perform pressure check/visual inspection of the following and repair as necessary.
Plugged inlet air filters
□
Charge air cooler leaks
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Leaking intake manifold
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Exhaust leaks/plugging
□
All information subject to change without notice.
Copyright © 2007 DETROIT DIESEL CORPORATION
SERIES 60 DDEC VI TROUBLESHOOTING GUIDE
31-3