Skip the auto shop - Our mechanics make house calls

Q: Misfire codes and no-start. What could it be?

asked by on

I recently had my water pump and timing belt repalced... mechanic said he put more oil in it becaus eit was "low"... i got it back and it was starting up rough, drove it around and thru me code p1259 then went away. I asked what type of oil he put in it and he said 10w30 when my car take 5w30.. i was going to jus change oil but when i tired to start my car, it wouldnt start and thru me codes p0301-3 and p0300

My car has 196544 miles.
My car has an automatic transmission.

A: Fault codes for P0300, P0301, P0302, etc. i...

Fault codes for P0300, P0301, P0302, etc. indicate misfires. P0301 would indicate cylinder #1 misfiring, P0302 would indicate cylinder #2 misfiring,etc. Code P2159 has to do with the VTEC system malfunction. If all this started after the timing belt replacement, it is possible that the timing marks were not lined up precisely and is causing multiple misfiring across all 4 cylinders. This can effect oil pressure which can set the 'VTEC fault code as well as the VTEC system operates by oil pressure. Also, if the VTEC solenoids were disconnected to work on the vehicle and reconnected improperly, that fault code can also be set. Also, just due to the age and mileage, the oil screens in the VTEC solenoids may be clogged and not allowing proper oil flow within them. You may want to have the repair shop that replaced the timing belt inspect the vehicle before driving it any further. If you would like to have a different mechanic check this, a certified professional from YourMechanic can come to your car's location to diagnose the no start issue and Check Engine Lights to make sure these are corrected.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Vehicle idling rough once warm

This might be due to a vacuum leak. Vacuum leaks are common in older vehicles because of the age of rubber lines, gaskets, etc. The vacuum leaks alter the air fuel mixture and as the engine tries to adjust it,...

Q: Turning over but won't start

Hi there: Quite often the type of issue you're describing is caused by a fuel restriction or emissions component issue. Some of the particular parts that could be causing this include the EGR valve, O2 or air to fuel ratio...

Q: Can't pass smog check due to misfire

If your engine is misfiring it will not pass a smog check. The engine needs to be in good running condition in order to pass. I suggest having an expert mechanic, such as one from YourMechanic, inspect why your engine...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.