Q: Acura 2002 rl p0303 no spark

asked by on

I have an acura rl 2002 3.5 .. I have a check engine light p0303 misfire on cylinder number 3.. I've replaced the spark plug I've replaced the ignition coil and I've replaced the fuel injector .. Still misfiring so then I cleaned out the egr ports took off the intake manifold cleaned the egr tube cleaned the whole manifold and ran seafoam in it still misfire on cylinder 3 no spark... So then maybe I thought I may have bought a faulty new ignition coil or fuel injector I swapped them with cylinder 2 and still cylinder 3 has no spark.. I'm thinking now it might be a valve adjustment but I've heard these engines don't require one because of some hydraulic tappets or lifters can't remember.. All I know is I'm not getting spark ive tested the ignition coil wire for current with a volt meter there's power in the cable but there's no spark only on cylinder 3.. I'm really confused

My car has 250900 miles.
My car has an automatic transmission.

The coil in your application has a power wire, a ground wire, and a PCM pulse command wire (5 volt pulse) that operates the coil’s internal switching transistor. Although you may have measured battery voltage on the power wire (Blk/Yel), the coil will not fire if the PCM/ICM driver is not functioning, the ground is poor, or any of the interconnecting wiring has a deficiency. This is an electrical problem and consequently if you desire a diagnostic, and thence repair, the relevant service to request is an electrical component/circuit diagnostic. If you request that service, the responding certified mechanic will get this diagnosed and resolved, right at your location. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Acura 2002 rl p0303 no spark

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

Get a quote

What others are asking

Q: Can I replace my headlight lens?

No, the assemblies are sealed units with vents. The lens is not available separately. Your low beam headlights are Xenon bulbs, also called HID. That might be the reason they are pricey. Your car is a rebadged version of the...

Q: Car starts, shakes then Dies out within seconds!

Hi there. The dreaded rotten egg smell is caused by either a clutch that is damaged or the catalytic converter that needs to be replaced. I would recommend before you take your car to any repair facility or attempt any...

Q: My car won't go over 20 mph. It will start to shake vigorously once it hits 20 mph

Hello. When an issue like this turns up with this many codes I usually start by checking the fuel pressure. If the fuel pump is failing and not creating the right pressure then you will get multiple misfires. If the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...