Q: Acura 2002 rl p0303 no spark

asked by on March 05, 2018

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.

Electrical components are not working Inspection $94.99 - $114.99 Get a Quote

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.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I turn on the power mirror defoggers?
If your Accord is equipped with power mirror defoggers, these can be used to quickly defrost your mirrors on winter mornings. To activate them, just do the following: Turn the key to on. Locate the Mirror Defogger button on the...
How do I use the multi-mode automatic transmission?
The multi-mode automatic transmission has five available positions: P (Park), R (Reverse), N (Neutral), D (Drive – all gears available), and S. In S mode, the driver is able to control which gear is the top limit by moving the...
Car not starting after sitting for a year
Hello, when a car is stored, things can go bad just from sitting. The first thing to check are all of the fuses. If the fuses are good, then further diagnosis will be needed. I'm not sure if you have...
Road noise from the front end. I thought the tires were bad. replaced the tires and the noise is still there?
If you are hearing noise from the front wheel bearings, then you will have a noise that will get louder the faster you go. The noise may get more or less as you turn the wheel left or right. Have...
Fuel pump 2001 Toyota Sequoia
Hello - check the fuel pump fuse(s) first, then make sure the [fuel pump relay](https://www.yourmechanic.com/question/is-the-problem-my-fuel-pump-relay-or-connector-by-scott-s is passing current to the fuel pump. The relay may have burned contacts and is not passing enough current to run the pump. You may...
Remote start stopped working and check engine light went on.
Hi there. The codes are referring that that both banks on the engine are reading a lean condition. For a lean condition to occur, the fuel system is not functioning properly. Check the fuel pump, fuel pump relay, and the...
Can you pass emissions with a turbocharged car with odb-2 if it did not originally come with a turbocharger?
Can you pass emissions with a newly turbocharged car that has ODB-2 that does not come with a turbocharger from the factory? It is illegal to modify any factory installed emissions system on a motor vehicle. Adding a turbocharger...
Code P2135-Error codes read - Throttle position sensor circuit range/performance. Is this something a regular mechanic can report
Hi there. The P2135 is one of most misdiagnosed trouble codes (https://www.yourmechanic.com/article/p2135-obd-ii-trouble-code-throttle-pedal-position-sensor-switch-a-b-voltage-correlation-by-blake-griffin) for mechanics. This particular trouble code indicates that the Power Control Module (PCM) has detected an erroneous reading regarding the voltages transmitted by throttle position sensor A or...

Related articles

A Buyer’s Guide to the 2012 Acura TSX
The The 2012 Acura TSX is a luxury midsize sedan that comes with superior comfort and convenience. This vehicle offers excellent fuel economy, reliability, and a simple pricing structure for a variety of different budgets. It drives easily down the...
A Buyer’s Guide to the 2012 Acura ZDX
The The 2012 Acura ZDX is a compact crossover that manages to combine luxury with a sleek format. It features a V6 engine, as well as seating for three passengers in the (small) back seat. Overall, the 2012 ZDX is...
Understanding the Acura Maintenance Minder Codes and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Acura Maintenance Minder codes indicate when and what service your car needs.