Q: Periodically vehicle runs rough at idle.

asked by on February 15, 2017

Periodically, the vehicle will run rough at idle. Turn the car off and restart and runs fine. Most of the time, the vehicle runs fine. Recently, went to obtain an emissions inspection and the test identified the following codes: P0313, P0300, P1085, P1353, P0155, P1345, P1347, P1343, P0171, and P0741. I have had the P0741 check at a transmission shop. They could not identify and issues with the operation of the transmission.

My car has 133400 miles.
My car has an automatic transmission.

Car is hard to shift Inspection $79.99 - $89.99 Get a Quote
Engine is misfiring Inspection $79.99 - $89.99 Get a Quote

Hi there. Most of the codes that are coming on are for a misfire on cylinder number 3. Check the spark plug and wire on cylinder 3 and see if you are getting a good spark. Then check the fuel injector on cylinder 3 to see if its working by unplugging it. If the cylinder changes and makes the engine act up even more, then the fuel injector is working. If there is no change, then either the injector is not firing or the cylinder has a loss of compression in the cylinder. At that point you would want to check for compression on cylinder 3 to determine if it’s a fuel issue or an internal issue.

For the transmission code, the torque converter clutch solenoid has failed in your transmission and needs replaced.

If you need further assistance with your engine misfiring, then seek out a professional, such as one from Your Mechanic, to help you.

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

My Check Engine Light came on and my car rattles horribly.

The catalytic converter will definitely cause a rattling sound when it is worn out or needing to be replaced, which will also cause your Check Engine Light to come on. There are small honeycomb like pieces inside the converter that...

Too much oil in car and need to drain it.

Due to engine oil being considered a hazardous waste, I recommend enlisting the help of a technician to remove excess oil from your Honda Civic. There are three common ways this is done. The first way is for the mechanic...

Car turns over but doesn't start.

There could be several reasons behind why your Honda Prelude will not start. A simple test you can try first yourself is to turn the key to the ON position (do not start the car) and see if the check...

My wife's car is jerking while switching gears, and got codes P0700 and P0765 from check engine light

Based on those fault codes, there is a faulty shift solenoid. The lack of acceleration is probably due to the transmission going into a failsafe mode. You may want to get a mechanic to look at the transmission to prevent...

Do I have to have the bluetooth installed by the dealer?

You can get an aftermarket radio set up, but it may interfere with the natural functions of the vehicle. If you want to keep functionality through the vehicle, you will want to consult the dealer on your options as man...

Battery light is on and car has no power steering

If the Battery Light is illuminated and the battery passes a load test, then you most likely have a faulty alternator; a charging system test would need to be performed to verify this. On the 2001 540i, the power steering...

Oil change

Oil and filter change intervals are specified by vehicle manufacturers, not mechanics, in carefully considered and prepared "maintenance schedules". Mechanics do not have the necessary field test data, or laboratory data, to wisely specify oil change intervals other than what...

poor acceleration check engine

You will want to have the catalytic converters checked. The 540's are notorious for the catalyst inside the catalytic converters breaking apart from the outer wall of the assembly and rattling around, especially upon take off. This will also create...

Is it bad to drive without the trans filter?

Hi There, As you may know, a transmission requires hydraulic pressure generated by the transmission fluid, which forces the fluid into the valve body. When this happens, it activates a shift solenoid that engages the next gear. When the fluid...

Related articles

What Does the Check Engine Warning Light Mean?
The check engine warning light means there is a problem with the vehicle's engine. This could be due to faulty spark plugs or defective sensors.
P0385 OBD-II Trouble Code: Crankshaft Position Sensor B Circuit Malfunction
P0385 means the crankshaft position sensor B circuit is malfunctioning
P0609 OBD-II Trouble Code: Control Module VSS Output "B" Malfunction
P0609 code means there is an malfunction in the vehicle speed sensor output from the PCM often due too corroded wires or an defective control module.