P1794 Alvis Td21 Engine Fault Code

Check Solution For P1794 Alvis Td21 OBD Code :

P1794 Alvis Td21 engine code seems a kind of powertrain problem, we try to show one by one the meaning and the solution.
Brief explanation of the P1794 Alvis Td21 code and definition of P1794 Alvis Td21 is the bottom side.

P1794 Alvis Td21 Meaning :

p Powertrain Code
Problem is related engine, transmission and emissions systems.
1 MFG - Manufacturer Specific
7 Auxiliary Emission Controls
9 Crankshaft Position Sensor Circuit Performance
4 Cruise Vehicle Speed/Set Speed Difference Too High

MFG - Manufacturer Specific codes, which have a '1' as their second digit to indicate they are unique to a particular vehicle make or model. These special codes were deemed necessary by the vehicle manufacturers so they could provide additional diagnostic information beyond the basic list of generic OBD II codes for all kinds of faults, not just emissions-related faults.

How To Fix P1794 Alvis Td21 ?

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

P1794 Alvis Td21 Code Description:

Deactivation of cylinders is achieved by releasing a synchroniser pin that normally interlocks the cam follower and rocker arms. P1794 code resolves the synchroniser pin is released using hydraulic pressure which is controlled by a dedicated solenoid. When you see P1794 Alvis Td21 engine fault code on your engine code reader this description will help you.

P Codes List of all Powertrain codes.

Final Step: In the definitions listed below, there is a test drive recommended after you've completed any repairs to see if the condition is fixed. Before you take a test drive after a repair, always erase the P Code(s) first. This will turn the check engine light off and then you will know if the check engine light returns, you've got further diagnostics to complete.

BE CAREFUL !
This engine code information is presented for information purposes only. This is not intended as repair advice and we are not responsible for any actions you take on any vehicle.

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