Toyota

Have Toyota Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

97 previa po300 code po301,302,303,304 had oil on plug

Customer Question
97 previa po300 code...

97 previa po300 code po301,302,303,304 had oil on plug wires..

Mechanic's Assistant: When was your last oil change?

Recent less than 100 miles

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

Plugs wires cap and rotor Seem to run better but still showing misfire codes. replaced egr valve 2 years ago

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

It has been sitting up for several months.. also ran seafoam throttle body cleaner recently. Just keep trying when i have time to work on it

Submitted: 1 year ago.Category: Toyota
Show More
Show Less
Ask Your Own Toyota Question
Answered in 3 hours by:
8/6/2017
Toyota Mechanic: Mechanic01, ASE Certified Technician replied 1 year ago
Mechanic01
Mechanic01, ASE Certified Technician
Category: Toyota
Satisfied Customers: 3,828
Experience: Owner at Baltic investments
Verified

Hello my name is ***** ***** I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required.

Ask Your Own Toyota Question
Toyota Mechanic: Mechanic01, ASE Certified Technician replied 1 year ago

before you put any more money into that I would do a compression check on it

Ask Your Own Toyota Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a toyota mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Chris (aka-Moose) Your Own Question
Chris (aka-Moose)
Chris (aka-Moose)
Chris (aka-Moose), Auto Technician
Category: Toyota
Satisfied Customers: 1,115
1,115 Satisfied Customers
Experience: 16 years of experience

Chris (aka-Moose) 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:

Chris (aka-Moose)

Chris (aka-Moose)

Auto Technician

1,115 satisfied customers

16 years of experience

Marty

Marty

ASE Certified Technician

199 satisfied customers

ASE & Bosch Master Tech. 30 years experience.

Amedee

Amedee

Toyota Technician

1,245 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Anthony

Anthony

ASE Certified Technician

401 satisfied customers

ASE Master Automobile Technician with over 20 years exp. in this field.

Richard

Richard

ASE Certified Technician

9 satisfied customers

Toyota tech. ASE Certified Technician

Skyvisions

Skyvisions

ASE Certified Technician

13,102 satisfied customers

Toyota Master Diagnostic

Genchi Genbutsu

Genchi Genbutsu

Toyota Master Technician

3,761 satisfied customers

Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine

< Previous | Next >

Related Toyota Questions
I have a 2010 Toyota Prius that has 165,000 miles on it.
I have a 2010 Toyota Prius that has 165,000 miles on it. Recently, I noticed the engine sounded like it would ping from time to time. I decided to do some maintenance. So Here is a list of the things … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Previa rough idle, hesitation after parked for a week. will
previa rough idle, hesitation after parked for a week. will eventually clear itself after several days driving. … read more
Mechanic01
Mechanic01
ASE Certified Technician
3,828 satisfied customers
I have a 1996 rav4 with a misfire on no. 3 cylinder replaced
i have a 1996 rav4 with a misfire on no. 3 cylinder replaced all plugs an wires dist. cap and rotor button. compression checked out ok. replaced no 3 fuel injector. it only misses when your cruseing w… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,582 satisfied customers
I have a 1992 MR 2 running really rough, misfiring, stalling
Hi, I have a 1992 MR 2 running really rough, misfiring, stalling and running rich. I have two error codes: 2 & 4 which suggest air flow/map, and coolant sensor or circuit. I,m not sure of the location… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
I have a 02 toyota avalon has a misfire p0300 code. 't know
i have a 02 toyota avalon has a misfire p0300 code. don't know what cause it … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
13,102 satisfied customers
Toyota Previa LE: I have been chasing this problem for a couple
I have been chasing this problem for a couple months. I have had 5 Previas (two of them new and 3 of them SC's) so I am pretty familiar with their maintenance as I do all the servicing. Please read al… read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
1995 camry: If I put it i neutral at a stop will not die?
I have a 1995 camry. When I come to a stop, sometimes it dies. If I put it i neutral at a stop will not die? I changed the plugs and wires just 2 years ago… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
13,102 satisfied customers
2001 Toyota Camry: hesitated..10 seconds..idling rough..smooth..park
My 2001 Toyota Camry hesitated when first driving in the morning. After about 10 seconds or so it would go just fine. Now it is idling rough while stopped and in drive (but is very smooth running if p… read more
Dave Nova
Dave Nova
Auto Dealership Owner
Associate Degree
34 satisfied customers
1991 Camry: iac valve..remove the throttle body or can it be removed
1991 Camry. What is the best way to remove and clean the IAC valve? Do I have to remove the throttle body or can it be removed by itself? Thanks.… read more
Genchi Genbutsu
Genchi Genbutsu
Toyota Master Technician
Vocational, Technical or Trade Scho
3,761 satisfied customers
1996 Toyota Previa: New plugs, rotor, wires, cap, fuel filter.
1996 Toyota Previa minivan. 191K miles. New plugs, rotor, wires, cap, fuel filter. Recently ran several tanks of fuel injector cleaner to clean internal parts, along with taking off vacuum hoses for a… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
Car has been running rough. engine light on. Car idles at 600
Car has been running rough. engine light on. Car idles at 600 rpm. When you take your foot off the gas pedal, idle drops to 600-800 fast...burning a tank of gas for 100-150 miles. usually get between … read more
Amedee
Amedee
Toyota Technician
Vocational, Technical or Trade Scho
1,245 satisfied customers
97 Toyota Corolla: P0304..the cap, plugs, rotor, wires..fuel injector
I have a '97 Toyota Corolla with the 1.6 L Engine. I continue to get code P0304. To resolve this I have changed the cap, plugs, rotor, wires, fuel injector #4, and have run BG44K & BGCF5 through it, y… read more
Toyotapro
Toyotapro
Technician
Vocational, Technical or Trade Scho
9,283 satisfied customers
1998 Camry LE: cyl..000 miles..brake pads..transmission fluid change
1998 Camry LE 4 cyl auto; 154,000 miles. Did maint services in March (fuel injection cleaning, brake pads replacement, transmission fluid change, etc.). Now in mid-late June, has engine hesitation at … read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
98 Camry V6, Engine occassionally runs rough at idle and low
98 Camry V6, Engine occassionally runs rough at idle and low speed and engine flickers on and off.… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
13,102 satisfied customers
toyota tundra 2001 v8 code P0505, idle controll sysemt, the
toyota tundra 2001 v8 code P0505, idle controll sysemt, the book that I have tells me that only v6 have a idle air controll, what should I look for on the v8, truck dies when you are driving and stop … read more
Toyotapro
Toyotapro
Technician
Vocational, Technical or Trade Scho
9,283 satisfied customers
91 toyota supra: turbo..ran good..looked good..the wire going
I own a 91 toyota supra turbo and just got the engine changed on it. it ran good for about 2 months but now it sounds like its missing or one of the plugs arent sparking or something. I checked the wi… read more
joseph carrillo
joseph carrillo
automotive drivability tech
Vocational, Technical or Trade Scho
314 satisfied customers
1992 toyota camry: cap wires rotor plugs ran great..warmed up..rough
1992 toyota camry 3.0 changed cap wires rotor plugs ran great untill it got warmed up. starting runing rough and now wont idle. i have spark at all 6 pugs. coil ohms within tolorance. help please… read more
Amedee
Amedee
Toyota Technician
Vocational, Technical or Trade Scho
1,245 satisfied customers
1989 toyota: fule injection ,just started running...It..sputters
my 1989 toyota truck with fule injection ,just started running poorly.It runs but it won't idle very well and it sputters… read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 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