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Volvo penta fault code

MID: 128 - Engine
PID: 15 - ??? are you sure it's 15?
FMI: 5 - typically low signal or open circuit

Mark
 
Hi, we are having a different MID 128 code. It is PSID 112, FMI 3 and we can't find anything online about it. We suspect it is related to engine overheat and coolant high temp. based upon the engine overheating...
 
I have searched high and low for Volvo PSID information and haven't had much luck. The "P" stands for Proprietary. I have found other information on Volvo EFI systems but nothing specific to this code. The only way that I know of is to pull codes with a Rinda TechMate Pro scan tool or their Diacom PC software.

Mark
 
mvn said:
I have searched high and low for Volvo PSID information and haven't had much luck. The "P" stands for Proprietary. I have found other information on Volvo EFI systems but nothing specific to this code. The only way that I know of is to pull codes with a Rinda TechMate Pro scan tool or their Diacom PC software.

Mark
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Thanks Mark. The mechanic is saying that no code is stored in the system. Would really like to know what it is/was before I finalize everything.
 
The J1587 protocol (MID/PID/FMI) is used when the fault is in the EVC system. Sometimes there will be a crossover list in the EGC Diagnostics Workshop Manual for your engine. This will allow you to convert to a DTC that might be covered in that manual, but sometimes you will need a copy of the EVC manual for your version. You need to know what version of EVC you have. Sometimes you will need to use a VODIA scan tool. I have found that Diacom can fall short when working on EVC.
 
muc said:
The J1587 protocol (MID/PID/FMI) is used when the fault is in the EVC system. Sometimes there will be a crossover list in the EGC Diagnostics Workshop Manual for your engine. This will allow you to convert to a DTC that might be covered in that manual, but sometimes you will need a copy of the EVC manual for your version. You need to know what version of EVC you have. Sometimes you will need to use a VODIA scan tool. I have found that Diacom can fall short when working on EVC.
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Very informative......good to know. I was on the hunt for EVC manuals for curiosity's sake but no luck.

Mark
 
Still can’t find anything on the internet to help me decode my engine fault! It’s just crazy that this info isn’t available! My fault code is MID: 128 PSID: 15 FMI: 5
I have a 2014 Cobalt 336 with twin V8 380 CE D engines. Volvo Penta EVC-E. Can anyone help?
 
Ok, I figured it out…128 is engine, 15 has to do with O2 sensors, 5 is low voltage or signal problem.
I replaced all 4 O2 sensors…two up stream and two down stream. Turned out to be one of the down stream sensors was defective at the tip ( sensor tip). The upstream and downstream are different part numbers and expensive from Volvo as all their parts are. I found them on eBay for way less. NO MORE CHECK ENGINE LIGHT!!
 
depair said:
Ok, I figured it out…128 is engine, 15 has to do with O2 sensors, 5 is low voltage or signal problem.
I replaced all 4 O2 sensors…two up stream and two down stream. Turned out to be one of the down stream sensors was defective at the tip ( sensor tip). The upstream and downstream are different part numbers and expensive from Volvo as all their parts are. I found them on eBay for way less. NO MORE CHECK ENGINE LIGHT!!
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I have a 2021 VP 350 CE with the identical fault code. Thanks for sharing. BTW where did you find the info? My dealer can't find PSID 15.
 
I've also had no luck finding the PSID codes. I have a fault code MID 128 PSID 13 FMI 5. Has anyone found a reference for the PSID code?
 
miner99er said:
I've also had no luck finding the PSID codes. I have a fault code MID 128 PSID 13 FMI 5. Has anyone found a reference for the PSID code?
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It would be helpful to know what version of EVC you have. Because as near as I can tell these codes sometimes changed from version to version.
This is one of the problems with trying to troubleshoot problems with EVC codes that you read on the dash. They are output in the EVC J-1587 protocol. If this is a EVC-C, this code translates to SPN 4239 FMI 0 in the J-1939 protocol. This will become a DTC 0174 in J-2012 protocol.

It appears that you might have an issue with Long term fuel trim bank 2 reaching the high limit.
There are a few possible causes. I suggest you look at the Diagnostic Manual for your engine.

All this wouldn't be a problem if you connected a scan tool to the engine ECM, that would give you the DTC you need.

Here is a neat little cheat sheet for what all the acronyms in J-1587 mean.

J-1587 Fault code information

• MID (“Message Identification Description”

The MID consists of a number which designates the control unit that sent the fault code message. (e.g. the engine control unit).

• PID (“Parameter Identification Description”

The PID consists of a number that designates a parameter (value) to which the fault code relates (oil pressure, for example).

• PPID (“Proprietary PID”

The same as the PID, but this is a Volvo-specific parameter.

• SID (“Subsystem Identification Description”

The SID consists of a number that designates a component to which the fault code relates (tachometer, for example).

• PSID (“Proprietary SID”

The same as the SID, but this is a Volvo-specific component.

• FMI (“Failure Mode Identifier”

FMI indicates the type of fault

And here is the cheat sheet for FMI in J-1587 (just don't use this for J-1939 code in the SPN format, because it's sometimes different)

0 “Value too high” Data valid but above normal operational range.

1 “Value too low” Data valid but below operational range.

2 “Faulty data” Data erratic, intermittent or incorrect

3 “Electrical fault” Voltage above normal or shorted high

4 “Electrical fault” Voltage below normal or shorted to lower voltage

5 “Electrical fault” Current below normal or open circuit.

6 “Electrical fault” Current above normal or short circuit to battery negative

7 “Mechanical fault” Mechanical system not responding properly

8 “Mechanical or electrical fault” Abnormal frequency, pulse width or period

9 “Communication fault” Abnormal update rate

10 “Mechanical or electrical fault” Abnormally large variations

11 “Unknown fault” Unidentifiable error

12 “Component fault” Faulty device or component

13 “Faulty calibration” Calibration value out of range.

14 “Unknown fault” Special instructions

15 “Unknown fault” Reserved for future use
 
I read these codes from the 4" screen. Engine specs are 2019 V8-300CE-G EVC DP 300 hp 221 PkW. It also includes the optional EVC w/PTA & Cruise. Would it be a shorted O2 sensor by the FMI 5 code?
 
miner99er said:
I read these codes from the 4" screen. Engine specs are 2019 V8-300CE-G EVC DP 300 hp 221 PkW. It also includes the optional EVC w/PTA & Cruise. Would it be a shorted O2 sensor by the FMI 5 code?
Click to expand...
If this is the only code in the system, no it couldn't be a shorted O2 sensor. A shorted O2 sensor would have a different code. It could be a bad O2 sensor, just not a shorted O2 sensor.

The engine serial number and EVC version (there will be a sticker on the EVC controller that is mounted on the engine) would help with diagnosis.

You need to understand the the codes you get from the EVC display were never designed for diagnostic work and not all codes will be displayed.
This system was designed so the boat owner could contact the dealer and relay the code that's displayed and the dealer can advise you of the dangers of continuing to run the engine. Yes you could possibly cause some expensive damage if you keep running this engine.

This engine should be scanned to see what's going on. It will most likely be cheaper in the long run.

But if you want to guess and hope, here is a list of the most common causes. Bear in mind that this is if this code is the only code in the system,


1 exhaust leaks upstream or near the O2 sensor
2 reduced fuel supply pressure to the fuel injection system
3 a non-responsive O2 sensor
4 an injector or injectors that is stuck closed or restricted

These are all things that a properly trained and equipped tech can diagnose in 2-4 hrs.
 
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