Problem of startup

Your $7E8 and the $7E9 are fuel/ air intake codes, as for the P1326 Ok, this code is set when the knock sensor detects vibrations from engine rod knock, however, it may be set falsely due to incorrect knock sensor logic programming in the engine control module.

Codes $7E8, $7E9 and P1326? - CarGurus.ca

P0606
The P0606 fault code means that there's an error with your power control module (PCM). Your PCM is the computer inside your car that monitors all the vital systems. Basically, it's the brain of your car. Every time you start the car, the PCM runs a series of checks to make sure everything is okay.

How to Fix the P0606 Fault Code - Solo Auto Electronics

https://www.solopcms.com > blog > fix-p0606-fault-code

P0606 - Meaning, Causes, Symptoms, & Fixes - FIXD

https://www.fixdapp.com > blog > p0606-code
6 days ago - Code P0606 is triggered when there is a fault found in the processor internal to the Engine Control Module (ECM)/Powertrain Control Module ...

P0606 - OBD-II Trouble Code - RepairPal

https://repairpal.com > obd-ii-code-p0606
When the code P0606 is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is failing its own self-check and has found problems with ...

P0606 OBD-II Trouble Code: PCM Processor Fault

https://www.yourmechanic.com > Articles
P0606 code definition PCM Processor Fault What the P0606 code means The Powertrain Control Module is sometimes referred to as the Power Control Module, ...

You have to fix the issue first, and then you clear the code using and OBD11 scanner.

P0629 means there is an issue with the "A" control circuit in the fuel pump often due too bad connectors/wires or a defective CAN bus

P0627 - Fuel Pump 'A' Control Circuit/Open

Possible causes

- Faulty Fuel Pump
- Fuel pump harness is open or shorted
- Fuel pump circuit poor electrical connection
- Faulty Fuel Pump Relay
- Faulty fuel pump control module (if applicable)

P0606 OBD-II Trouble Code: PCM Processor Fault

What the P0606 code means

The Powertrain Control Module is sometimes referred to as the Power Control Module, or the Engine Control Module (ECM); all of these names mean the same thing. The PCM is responsible for monitoring every aspect of the vehicle's engine and electrical system.

When the vehicle is started up, the PCM will perform a self-check to make sure that all of the engine's components are operating properly. If the result of this self-check indicates that there is a processor fault in the the PCM, it will store the P0606 diagnostic trouble code.

What causes the P0606 code?
•PCM wires that are broken, corroded, and/or frayed
•PCM connectors that are broken, corroded, and/or frayed
•Faulty PCM ground circuits and/or output devices
•Faulty Controller Area Network (CAN) bus communication

https://www.google.com/search?q=code+p0606+on+a+kubota+mx5200&rlz=1C1QJDB_enCA643CA644&oq=code+p0606+on+a+kubota+mx5200

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P0606 Toyota ECM Processor Error

P0606 , P0607 ! no such codes P06006 or P06007
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610
DTC P0606 Control Module Internal Performance
The DTC P0606 and P2610 set when the powertrain control module (PCM) has determined that the control module has an internal fault. The PCM performs continuous self checks of all internal circuits. There are 2 central processing units (CPU) within the control module. If the outputs from the two CPUs deviates from the standard level, a DTC P0606 sets. The control module has several internal clock or timer circuits. The DTC P2610 diagnostic monitors the internal timer circuit responsible for the ignition OFF operation of the evaporative emission (EVAP) system vacuum leak pump. If the there is an error in the control module timer, a DTC P2610 sets.

Hi there:
P0606 is a internal computer fault. Sometimes extreme hot or cold weather will screw up a computer.




P0606 - PCM / ECM Processor Fault
This code is a fairly simple one. It basically means that the PCM/ECM (powertrain/engine control module) has detected an internal integrity fault in the PCM. When this code is activated it should store freeze-frame data that helps someone with an advanced code scanning tool to get information on exactly what was going on with the vehicle when the P0606 code was triggered.



Most likely the only symptom of a P0606 DTC code is the illumination of the "Check Engine Light" a.k.a. MIL (Malfunction Indicator Lamp).



Cause: In all likelyhood the PCM / ECM has failed.


Possible Solutions: As a vehicle owner there is little you can do to fix this code. The most common fix for a P0606 code is to replace the PCM, although in some cases re-flashing the PCM with updated software could possibly fix this. Be sure to check for TSB's on your vehicle (Technical Service Bulletins).


In all likelyhood the fix is to replace the PCM. This is generally not a "do-it-yourself" task, although in some cases it may be. We strongly recommend you have a qualified repair shop / technician do the work, one that has the capability to reprogram the new PCM. Installing the new PCM may involve using special tools to program the vehicle's VIN (vehicle identification number) and/or anti-theft information (PATS, etc.).


NOTE: This repair may be covered under the emissions warranty so be sure to check with your dealer as this may be covered beyond the bumper-to-bumper or powertrain warranty period.


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p0001 is fuel volume regulator control circit/open. p0089 is fuel psi regulator performance. p0190 is fuel rail pressure sensor. p0490 is egr control circate high.p0489 egr control circate low ... p2135 throttle position sensor.p0606 ecm/pcm processor... sorry about some of my spelling.

CODE PO606 - ECM/PCM PROCESSING ERROR CONDITIONS.WHAT IT MEAN IS ECM FAULT.

Start with the first code first. The P0606 code essentially means the PCM has failed - more info @ http://www.obd-codes.com/p0606

The is a TSB out for this problem. Take it to the dealer and they will replace you ECM with a upgraded unit. Its covered under the 8year/80k warranty.