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Example: P0120
B3969 Chevrolet Four Ninety engine code seems a kind of body problem, we try to show one by one the meaning and the solution.
Brief explanation of the B3969 Chevrolet Four Ninety code and definition of B3969 Chevrolet Four Ninety is the bottom side.
| b |
Body Code Problem is antilock brake system, electronic suspension and steering systems. |
| 3 | SAE - Generic |
| 9 | Fuel And Air Metering (Injector Circuit Malfunctions Only) |
| 6 | Control Module Throttle Actuator Position Performance |
| 9 | Kick-Down Switch Failed Short |
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 B3969 Chevrolet Four Ninety ?
Regarding the B3969 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter. |
While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the B3969 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools. When you see B3969 Chevrolet Four Ninety engine fault code on your engine code reader this description will help you.
| B Codes | List of all Body 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 B 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.
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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.
