Q: What is causing the engine misfires?
I had a P0301 code so I changed all spark plugs and the coil for cylinder 1. Then, I cleared the code. Soon after a P0303 code popped up. I've been having low RPM at stops, poor gas mileage and a lot of smoke out of the muffler when I start the vehicle in the morning. What could be the cause? Camshaft sensor? Leak?
My car has 143560 miles.
My car has an automatic transmission.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
How do I use shuffle mode?
Activating shuffle mode couldn’t be easier. Simply press the SET/RND button while you’re listening to a CD, and the CD player will automatically enter shuffle mode.
What does the Eco Mode On message mean?
The Eco Mode On message can appear on the driver information center (DIC). When the DIC displays this message, that means that the fuel economy mode has been activated.
Rebuilt engine rough idle and wanting to die.
The carburetor (https://www.yourmechanic.com/services/carburetor-replacement) may need to be rebuilt or adjusted. The EGR system (https://www.yourmechanic.com/services/exhaust-gas-recirculation-egr-valve-replacement) may also be causing the rough idle due to the EGR partly stuck open. The only way to isolate which one is causing the issue would...
Odometer isn't working
The odometer would need to be removed and sent out for repair or replacement. The problem is that the entire cluster would need to go to the repair shop to be fixed. I recommend having a mechanic, such as one...
Turn signal is out
Hi there. Bulbs going out is pretty common, however, other SRX owners have reported many issues with the bulbs burning out prematurely and having to replace them multiple times in a year. To replace the bulb, either the tire or...
My car not starting because there is no fuel pressure,
You'll have to remove the back seat bottom and gain access to cover to the fuel pump. Test the fuel pump's wiring to see if power is getting to the pump, specifically on the blue and black wire. If there...
Dtc light flashes and car judders
From what you've described you'll need to have the codes retrieved from the computer and have them diagnosed. This sounds like you are getting misfires (https://www.yourmechanic.com/services/engine-is-misfiring-inspection) and should start with checking the ignition. Also, check the spark plugs (https://www.yourmechanic.com/services/spark-plugs-replacement) for...
My 1992 Saturn SL2 keeps dying unexpectedly
Hello there, first thing to check of course is the fuel pump fuse and relay - the relay especially. Check relay voltage to the fuel pump while it's running. The relay can test OK, but have burned contacts from age,...
Is it possible to diagnose a problem if there is no error message when a diagnostic is run on a car?
Generally, the code will remain stored in the computer and may reappear. The check engine light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) comes on when something fairly serious is going on with the vehicle. This can happen for many different reasons such as a faulty...
Related articles
P0112 OBD-II Trouble Code: IAT Sensor Circuit Low Input Problem
P0112 P0112 code definition Intake Air Temperature (IAT) sensor circuit low input problem What the P0112 code means P0112 is the OBD-II generic code that the engine control module (ECM) has recorded the IAT sensor input below the expected sensor...
P0817 OBD-II Trouble Code: Starter Disable Circuit
P0817 means there is an issue with the starter disable circuit, possibly involving the battery, battery cable, or starter disable relay.
P0360 OBD-II Trouble Code: Ignition Coil I Primary / Secondary Circuit Malfunction
Trouble code P0360 means the powertrain control module (PCM) detects a problem with the primary or secondary circuit of an ignition coil.
Browse other content
Estimates
Cities