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Check P1661 Fault Code

When you check engine light came on code P1661 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1661 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1661 Code Reason

Parts or components should not be replaced with reference to only a P1661 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

P1661 Possible Fix :

Generally, coolant loss is the most common cause of overheating. If your engine overheats repeatedly, the high temperature could result in irreparable damage that can be a pain to repair. Prevention is the best medicine, so avoid this kind of damage by making sure the coolant is clean and the cooling system is in good operating condition.

P1661 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1661 Output Circuit Check Signal Low so you have to check ODB-II Fault Code Check list.

Reason For P1661 Code

The reason of P1661 OBD-II Fault Code Check is P1661 Output Circuit Check Signal Low.

P1661 Solution:

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

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