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Solved ✔ Ecu Bosch random Missfire
08-05-2023, 11:40 AM,
(This post was last modified: 24-01-2024, 11:51 AM by Clusters.)
Post: #1
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Ecu Bosch random Missfire
Hi guys
Have a Bosch 0261S06472 Ecu from a Peugeot 3008 1.6 MEV 17.4.2 wich have random missfires detected, usually on cilinder 4. All mechanical components involved (sparks, coils, wiring, etc double checked and all ok ). When engine is cold works fine but when is hot start missfires. Anyone can help with his experience about repair this control unit, prefer repair if any information available front clone the unit Thanks in advance for any help Have a nice day. |
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10-05-2023, 11:16 AM,
Post: #2
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RE: Ecu Bosch random Missfire
hello
you have a mechanical problem check engine compression or oil pressure problem 90% it's not ecu problem good luck |
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22-05-2023, 22:34 PM,
Post: #3
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RE: Ecu Bosch random Missfire
Variable valve timing problem
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27-05-2023, 10:41 AM,
Post: #4
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RE: Ecu Bosch random Missfire
(08-05-2023, 11:40 AM)vanderferdas Wrote: Hi guys Hi. If ALL is mechanically p-e-r-f-e-c-t : Sensor, Coil, Actuator, Variable timing and Variable Pulley PERFECTLY fitted, etc..... The last is the MEV 17.4.2 WHO is well known to be easily breakable... Sometimes, if one or more Coil are shorted or dead with this ECU, it isn't impossible than some MosFET F-A-I-L-E-D. Causing some misfiring.... I've changed the MosFET and all is perfect now |
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24-01-2024, 09:35 AM,
Post: #5
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RE: Ecu Bosch random Missfire
If help anybody, finally SOLVED changing Variable Pulley of camshaft, appears to be good, but when engine start warming lost hidraulic pressure and ECU "interpret" missfiring....this variable pulley or camshaft sproket was only 75€ at original Peugeot dealer.
Have a nice day |
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24-01-2024, 09:53 AM,
Post: #6
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RE: Ecu Bosch random Missfire
(27-05-2023, 10:41 AM)DoZe Wrote:(08-05-2023, 11:40 AM)vanderferdas Wrote: Hi guys If this had been the case, the car would have started poorly even when cold. These engines are well known for this type of problem, in fact it is a good idea to disconnect the phase variators to see if the engine runs correctly. |
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