Q: I have 05 audi a 6 Quattro 4.2. I sprayed the engine off one afternoon. Now I'm getting primary/ secondary circuit malfunction sho
I recently sprayed my engine off. Next day, started it and it was missing. Hooked scanner to it and codes for po 300 random/ multiple misfire, po351 ignition coil A primary/secondary circuit malfunction and cylinder 1&5 misfire. Changed spark plugs and 1&5 coil packs. Still missing like it was. What is ignition coil A primary secondary malfunction? If you can help I would greatly appreciate it.
My car has 134000 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
What are the positions on the ignition switch?
Your Accord has four different positions indicated by numerals on the ignition switch itself (0, I, II, III). Each of these does something different. Not sure what they mean? Don’t worry. 0: This is “lock”. The key can enter or...
How do I use the Instantaneous Fuel Economy setting?
The driver information center (DIC) provides a large amount of information to the driver. At any time, you can select what information you would like the DIC to display. To select the Instantaneous Fuel Economy setting, press the Menu button...
Transmission not working properly
Hi. P0133 is a code for the oxygen sensor bank one sensor. P0410 is a code for the secondary air injection system malfunction and a P0301 is a code for a misfire on cylinder 1. I would suggest having a...
Problems or issues with the porche panamera
As you know, with any car the life expectancy of it depends largely on the maintenance schedule the owner has maintained, the driving conditions it is subjected to, the driving habits of the owner and many other factors. Often times...
Spark plug misfire and car not starting
Generally, misfires are caused by either a spark or fuel issue or in cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition modules...
Does not idle well.
You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...
car won't start: electrical problem
Even a relatively new battery can be bad. If it has an internal short, a jump start may not even work to start the vehicle. try removing the battery and taking it to a local auto parts store, or where...
RPM increasing but car won't drive
What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by...
Related articles
P0460 OBD-II Trouble Code: P0460 Fuel Level Sensor Circuit Malfunction
P0460 means there is a discrepancy between the fuel gauge and the actual fuel level in the tank. Which could be caused by a fuel sensor malfunction.
P0864 OBD-II Trouble Code: Traction Control Module (TCM) Communication Circuit Range/Performance
P0864 means there is an issue with the communication circuit in the traction control module, likely due to a defective ON/OFF switch or module itself.
B1917 OBD-II Trouble Code: Air Bag Memory Clear Circuit Failure
B1917 means there the air bag memory clean circuit has failed, likely due to defective wires or connectors.
Browse other content
Cities
Services
Estimates