1991 Chevrolet Uplander P0121 Fault Code Check
When you check 1991 Chevrolet Uplander car engine light came on code P0121 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Chevrolet manufacturer may have a different definition for the P0121 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
Another consequence of P0121 1991 1991 Chevrolet Uplander engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.
1991 Chevrolet Uplander P0121 OBD-II Diagnostic Powertrain (P) Trouble Code Description1991 Chevrolet Uplander car P0121 OBD-II Trouble Code The throttle position sensor (Reason For 1991 Chevrolet Uplander P0121 CodeThe reason of 1991 Chevrolet Uplander P0121 OBD-II Fault Code Check is P0121 Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance. |
|
1991 Chevrolet Uplander P0121 Possibble Fix Ways :
Check your choke plate. Is it positioned correctly? Is it still working as it should? Does it open completely? If not, then you either replace it or repair it. If the damage is quite severe, I suggest you put down your repair tools and start looking around for a replacement choke plate to avoid a repeat of this nasty episode.
The rule of P0121 1991 1991 Chevrolet Uplander code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of P0121. Likewise, overriding the OBD P0121 1991 1991 Chevrolet Uplander system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.
|
What does fault code P0121 mean for 1991 Chevrolet Uplander ?
|