Search engine trouble codes.
Example: P0120
P3878 engine code seems a kind of powertrain problem, we try to show one by one the meaning and the solution.
Brief explanation of the P3878 code and definition of P3878 is the bottom side.
| p |
Powertrain Code Problem is related engine, transmission and emissions systems. |
| 3 | SAE - Generic |
| 8 | Ignition System Or Misfire |
| 7 | Vehicle Speed Output Circuit |
| 8 | PCM Stack Overrun |
SAE - Generic codes, which have a '0' as their second digit to indicate they are common to all makes and models of vehicles. These are the codes that are required for basic emissions fault diagnosis.
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How To Fix P3878 ?
The valves of each cylinder are kept closed using a pair of arms that replace the conventional engine's roller-type rocker arm. P3878 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. |
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. When you see P3878 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.
