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: Q: Car overheating when idling or in stop-and-go traffic

It sounds to me like the cooling fans aren't coming on. I would suggest having a certified mechanic test for power at the fans while the AC is on, and verify the fan switch, relays and wiring are all working...

Q: Car kicks out to the right while driving over small bumps at high speeds

The axle could be the issue. However, the reason the axle is jumping in and out is more likely due to a worn bushing or control arm. The control arms hold the tires to the ground. With your vehicle, you...

Q: I feel a thump anytime I hit the smallest dip in the road. I've been told that my control arm or tie end rod needs to be replaced.

Hi there. Raise up your vehicle and check the tie rod ends and the control arms and see if they are damaged or loose. Also check the strut tower and see if they are loose at the top of the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...