Lexus

Lexus troubleshooting questions? Ask a Lexus Expert

Ask an Expert,
Get an Answer ASAP!

I'm having a miss fire on cylinder #2 I've replaced plugs…

Customer Question
I'm having a miss...

I'm having a miss fire on cylinder #2 I've replaced plugs coil and checked wiring nothing. Removed coil and plug started engine got spark . Still misfired. Any ideas

Mechanic's Assistant: How many miles are on the car? Is it a steady misfire? Or random?

175'000 steady misfire on #2

Mechanic's Assistant: What is the model/year of your Lexus?

2001 rx300

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

I've replaced plugs coil both one. Swapped plug and coil

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

All oem parts

Submitted: 4 months ago.Category: Lexus
Show More
Show Less
Ask Your Own Lexus Question
Answered in 2 minutes by:
3/6/2018
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 4 months ago
Skyvisions
Skyvisions, ASE Certified Technician
Category: Lexus
Satisfied Customers: 14,994
Experience: Lexus Expert
Verified

Did you run the cylinder compression test?

Ask Your Own Lexus Question
Customer reply replied 4 months ago
No didn't try thar
Customer reply replied 4 months ago
Didn't try compression test
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 4 months ago

Has it only been P0302 or are there other cylinders? Any P0352?

Ask Your Own Lexus Question
Customer reply replied 4 months ago
Just #2
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 4 months ago

Any 0350 through 0356 codes ever?

Ask Your Own Lexus Question
Customer reply replied 4 months ago
Just p1345 I think upstream o2 sensor. Replaced code cleared never returned
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 4 months ago

Okay I just want to make sure that we were dealing with an ignition issue on the primary side of the ignition coil that was set those codes. Here's the bot***** *****ne you have low compression or a bad injector. I would run the cylinder compression test you need to be at least 160 psi typically this engine will do close to 180 psi. After that because this is on the front bank the only other possible option would be a leaky injector. Or restricted injector I would swap the number two injector with one of the injectors next to it either for number four number six. If the misfire follows injector then you know for certainty that's a bad injector. You've obviously ruled out secondary ignition at this point and because you're not getting any more than one cylinder misfire it's not VVT I related. If you need any other specific information feel free to reply and I will get back to you. Otherwise if you have not done so please do not forget to rate the assistance I provided you today at three or higher and a five would be awesome thank you.

Ask Your Own Lexus Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a lexus mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Skyvisions Your Own Question
Skyvisions
Skyvisions
Skyvisions, ASE Certified Technician
Category: Lexus
Satisfied Customers: 14,994
14,994 Satisfied Customers
Experience: Lexus Expert

Skyvisions is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

lexpert

lexpert

Lexus Master tech

2,100 satisfied customers

Master Certified with lexus, 8 years experience with Lexus

Skyvisions

Skyvisions

ASE Certified Technician

14,994 satisfied customers

Lexus Expert

Ron Z.

Ron Z.

- Lexus Tech -

451 satisfied customers

18+yrs experience. State Inspector and Lexus Diagnostics

Chris (aka - Moose)

Chris (aka - Moose)

Technician

342 satisfied customers

16 years of experience

AMD

AMD

Master Technician

270 satisfied customers

L1 Advanced Level Diagnostics Specialist

George H.

George H.

ASE Certified Technician

224 satisfied customers

15+ years ASE Master w/L1 Drivability certification

Tim Mohr

Tim Mohr

ASE MASTER

128 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

< Previous | Next >

Related Lexus Questions
Misfire on cyl 2and3 replaced ign ccoils 1999 lexus rx300
misfire on cyl 2and3 replaced ign ccoils 1999 lexus rx300 still have misfire … read more
Todd M
Todd M
Owner
ASE Certification
1,841 satisfied customers
I have a 04 Lexus ES330. Just got the code for a misfire on
I have a 04 Lexus ES330. Just got the code for a misfire on cylinder 2 (PO302) I can feel the misfire during idle, transmission engaged and excelleration up to about 2000-2500 RPMs. Is cylinder 2 in t… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,442 satisfied customers
Misfire on all six cylinders and skipping in second and
misfire on all six cylinders and skipping in second and third gear. also when starting it up it stalls and have to start it back up and rev engine to get it going … read more
rpmdiag
rpmdiag
High school
7,774 satisfied customers
I HAVE A 2001 LEXUS RX300 AND I HAVE A P0300 AND THE CHECK
I HAVE A 2001 LEXUS RX300 AND I HAVE A P0300 AND THE CHECK ENGINE LIGHT FLASHES OFF AND ON INTERMITTENTLY I CHANGE THE SPARK PLUGS LAST YEAR WHAT COULD THIS BE?… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
14,994 satisfied customers
I have a 2001 lexus rx300 that keeps throwing a cylinder 2
Customer: Hi. I have a 2001 lexus rx300 that keeps throwing a cylinder 2 misfire code. I have spark and fuel. Replaced the plug, coil and injector and still getting the code... I have the expected pow… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Lexus: 199 Lexus RX300, have a misfire but only under a load.
199 Lexus RX300, have a misfire but only under a load. idles ok, put in gear with brake on, misfire. had codes checked, said was misfire on 4… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,868 satisfied customers
I have a 99 lexus gs300 that cranks but won't start
I have a 99 lexus gs300 that cranks but won't start. I've checked fuel pressure - it is 45psi. I have also checked for spark by pulling plugs and grounding against the engine - spark is good. The engi… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,868 satisfied customers
Lexus ES300: We are working on a 99 Lexus ES300. Vehicle came
We are working on a 99 Lexus ES300. Vehicle came in with the complaint of the bank 2 pre-cat glowing cherry red. It was, and a scan indicated a misfire on cylinder 4. The customer had already replaced… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
14,994 satisfied customers
2000 Lexus: bank 1 sensors..#4 cyl and #3 cylinder fire..misfiring
2000 Lexus 300GS Pulled codes 135,141,301,303,305,306. Changed bank 1 sensors 1 and 2 and that took care of 135 and 141. Changed all plugs and wires but the only remaining code left is 303, This vehic… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
14,994 satisfied customers
1994 es300: p300, P0301, P0303, and P0305..coils..Same Codes
1994 es300 (220k miles) with P0300, P0301, P0303, and P0305. Changed all of the plugs and moved bank 1 coils to bank 2. Same Codes were found (after initially erasing them). The plug on cyl #5 was def… read more
lexpert
lexpert
Lexus Master tech
Vocational, Technical or Trade Scho
2,100 satisfied customers
2001 Lexus RX300: 000 miles..vsc light came..car ran..50 mph
I have a 2001 Lexus RX300, 117,000 miles. My CEL came on about 2 weeks ago, staying steady; the VSC light came on as well. A couple of days ago, the CEL started blinking and the car ran roughly, initi… read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
RX300: running rough a few months..was a bad spark plug...running good
I have a RX300 2000. It was running rough a few months ago and took it in and they said it was a bad spark plug. It was running good till 2 months ago. Started running rough again. I want to change th… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
00 lexus gs 300 has engine code po1656 also has codes p0300
00 lexus gs 300 has engine code po1656 also has codes p0300 p0301 302 303 305 relpaced plugs and cam cover gaskets to fix oil leaks in spark plug holes. before beginning repair unit would rev to 2500-… read more
RomeoTech
RomeoTech
Technician/Service Advisor
High School or GED
111 satisfied customers
1999 RX300: of a sudden started running very rough..miss..cylinders
My 1999 RX300 Lexus was a little low on gas and all of a sudden started running very rough with an obvious miss in the engine. I filled the tank but nothing changed in the engine. I am getting P0103 &… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
My 99 Lexus rx300 just got the the check engine light on, It
My 99 Lexus rx300 just got the the check engine light on, It has P0300, P0303 and P0302 misfire. they all come on at the same time. I am not driving it. What Do you think is my problem?… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
14,994 satisfied customers
2001 GS: spark plug wires..one coil..three hooked up to - the coil
how do i hook the spark plug wires up in a 2001 GS 300? Cylinders 6 and 1 are connected to one coil, but what coil is cylinder three hooked up to - the coil over cylinder 2 or cylinder 4?… read more
lexpert
lexpert
Lexus Master tech
Vocational, Technical or Trade Scho
2,100 satisfied customers
2003 lexus sc430: Last week my check engine light came on..cyl
I have a 2003 lexus sc430, Last week my check engine light came on. When I scanned it i got code p0301, I thought it was the ignition coil #1. The next day when I started the car, the engine light was… read more
Boxer54
Boxer54
Line Technician
2 years university - did not gradua
1,539 satisfied customers
93 Lexus SC400: no spark on #1 cylinder, low idle..rough idle
93 Lexus SC400 Cats glowing, no spark on #1 cylinder, low idle, no power, rough idle...just a mess...I don't think this is going to be an easy solution because there are signs that others have been po… read more
Boxer54
Boxer54
Line Technician
2 years university - did not gradua
1,539 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x