P0302
01-08-19, 03:41 PM
#1
Driver School Candidate
Thread Starter
P0302
About a month ago my 2002 RX300 gave me a misfire code on cylinder 2. The day after putting a gas treatment. On my way to work the vehicle started hesitating and missing and the check engine light came on. The next day I took it to an auto parts store and the scanner gave a P0302. Misfire detected in cylinder#2. I have replaced fuel filter and fuel pump strainer, pkugs and coils, vvt selenoids, MAF sensor and still the problem persists. I do not know what else to do. I'm trying to avoid the $100+/hr charge. PLEASE I NEED HELP! I forgot to mention that #2 injector was also replaced.
Last edited by santiagor; 01-08-19 at 07:32 PM. Reason: Forgot something
01-08-19, 03:52 PM
#2
Lexus Test Driver
About a month ago my 2002 RX300 gave me a misfire code on cylinder 2. The day after putting a gas treatment. On my way to work the vehicle started hesitating and missing and the check engine light came on. The next day I took it to an auto parts store and the scanner gave a P0302. Misfire detected in cylinder#2. I have replaced fuel filter and fuel pump strainer, pkugs and coils, vvt selenoids, MAF sensor and still the problem persists. I do not know what else to do. I'm trying to avoid the $100+/hr charge. PLEASE I NEED HELP!
2 more things to check.
Injector firing.
Compression test.
Note: i know you replaced the coils but check if you are getting power to energize the coil pack on #2.
01-09-19, 06:29 AM
#3
Driver School Candidate
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01-09-19, 07:05 AM
#4
I understand wanting to save money but you are throwing a lot of parts at this instead of being methodical. The simple step one would have been just swap the coil with the adjacent one and see if the problem moves. If it does, replace the coil. If it doesnt, go on to the next small change, the plug. And so on.
Changing lots of things at once can just confuse things and introduce new problems.
Since your goal was cost savings and you've changed many expensive parts I'm wondering if you cut costs by using low cost parts.
Changing lots of things at once can just confuse things and introduce new problems.
Since your goal was cost savings and you've changed many expensive parts I'm wondering if you cut costs by using low cost parts.
01-09-19, 06:03 PM
#5
Driver School Candidate
Thread Starter
Reply
I understand wanting to save money but you are throwing a lot of parts at this instead of being methodical. The simple step one would have been just swap the coil with the adjacent one and see if the problem moves. If it does, replace the coil. If it doesnt, go on to the next small change, the plug. And so on.
Changing lots of things at once can just confuse things and introduce new problems.
Since your goal was cost savings and you've changed many expensive parts I'm wondering if you cut costs by using low cost parts.
Changing lots of things at once can just confuse things and introduce new problems.
Since your goal was cost savings and you've changed many expensive parts I'm wondering if you cut costs by using low cost parts.
01-09-19, 07:37 PM
#6
Lexus Test Driver
01-09-19, 07:56 PM
#7
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01-09-19, 08:24 PM
#8
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