P1721 Oldsmobile F-85 Engine Fault Code

Check Solution For P1721 Oldsmobile F-85 OBD Code :

P1721 Oldsmobile F-85 engine code seems a kind of powertrain problem, we try to show one by one the meaning and the solution.
Brief explanation of the P1721 Oldsmobile F-85 code and definition of P1721 Oldsmobile F-85 is the bottom side.

P1721 Oldsmobile F-85 Meaning :

p Powertrain Code
Problem is related engine, transmission and emissions systems.
1 MFG - Manufacturer Specific
7 Auxiliary Emission Controls
2 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
1 TFP Valve Position Switch-Drive Without Drive Ratio

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 P1721 Oldsmobile F-85 ?

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.

P1721 Oldsmobile F-85 Code Description:

The valves of each cylinder are kept closed using a pair of arms that replace the conventional engine's roller-type rocker arm. P1721 code one of these arms follows the cam profile while the second arm connects to the valves. During normal engine operation the two arms are joined by a locking pin. When you see P1721 Oldsmobile F-85 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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