U0990 DTC For Chevrolet Grand Blazer
Chevrolet Grand Blazer Engine Specifications:
| Engine Type : | Single Cylinder Engine |
| Cylinder Type : | Opposite Piston Engine |
| Engine Air Intake Process : | Turbocharged Engine |
Your Chevrolet Grand Blazer engine control system detects a problem, the computer stores the diagnostic trouble
code U0990 in its memory.
To figure out what is wrong with your vehicle you must first extract the U0990 DTC For Chevrolet Grand Blazer.
A good ground connection is also extremely important. U0990 Chevrolet Grand Blazer engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).
U0990 Chevrolet Grand Blazer DTC Meaning
| U |
Network Code - Problem is climate control system, lighting, airbags, etc. |
| 0 |
SAE - Generic |
| 9 |
Transmission |
| 9 |
TP Sensor Learn Not Complete |
| 0 |
Transmission Engaged At High Throttle Angle |
If your vehicle failed a U0990 Chevrolet Grand Blazer test and the U0990 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U0990 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U0990 DTC For Chevrolet Grand Blazer: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.
You can also check other Chevrolet car models :
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The listed Chevrolet models will give information about U0990 DTC.
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