P1990 Acura Auto Trouble Code
P1990 Acura OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.
When you fill your car with gas, the vapors in the tank get forced into a canister filled with activated charcoal. Also, on a hot day as the gas heats up and vaporizes, those same vapors push into the canister where they're stored. But the charcoal can only hold so much vapor. At some point it has to be emptied. The emptying process is called canister purge.
P1990 Acura Possible Solution:
Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.
P1990 Acura Description For All Models :
- Acura Arta
- Acura Cl
- Acura Csx
- Acura El
- Acura Integra
- Acura Legend
- Acura Loctite
- Acura Mdx
- Acura Mdx Ii
- Acura Mdx Iii
- Acura Nsx
- Acura Rdx
- Acura Rl
- Acura Rsx
- Acura Slx
- Acura Tl
- Acura Tl Iii
- Acura Tl Iv
- Acura Tlx
- Acura Tsx
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P1990 Acura Trouble Repair :
OBD 2 P1990 Acura code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. Because of its ability to monitor individual components, OBD is able to give motorists an early warning that repairs are needed; it is because of this early warning capability that OBD will sometimes fail vehicles that would otherwise pass a tailpipe test. |
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