Question about 1999 Toyota Camry

1 Answer

Engine Misfire issues on 99 Camry

I am getting a 300, 301, 303 and 305 engine codes. Check Engine Light blinks. There is a Foul smell from the exhaust and at certain speeds the car shakes. Changed all sparks plugs, coils and cables with new ones from Toyota. However, problem is still there. What's puzzling is that the problem (and Engine light) seems to stay on for 2 weeks, go away for 1 week and then come back.

Please help.. already have spent a lot of money and problem is still there.

Posted by on

  • Anonymous Mar 30, 2014

    There is a loud humming noise coming from the engine. When sitting at a traffic light while holding the brake paddle down, the car will shake/tremble something awful. The car has had a front end alignment, replaced spark plugs, and the fuel injector for the number 4 spark plug has also be replaced, because of the dumping of fuel on that plug. Two weeks later it is doing the same thing. Number is getting wet from fuel.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Toyota Master
  • 61,168 Answers

You need to take this to a dealer, I think you may have an issue with the injector circuit, possible a defective PCM or wiring issue to the injectors, I don't think that the injectors themselves are the cause.

Posted on Dec 02, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Check engine light flashing check engine soon smell of gas and not running smouth


Check engine light flashing means there is a bad misfire , it flashes to tell you your damaging your catalytic converter . You need to have it check , you don't won't to have to replace the catalytic converter . Can cost up to $1,000.00 . Flashing Check Engine Light CarMD

Feb 03, 2016 | 2004 Cadillac Deville

1 Answer

Starts up but runs rough, exhaust smells, and when you give it gas it wants to shut off.


How To Fix P0300 random misfire codes in your car ...

? 2:56
https://www.youtube.com/watch?v=OyvdWeyDHf4
Feb 5, 2010 - Uploaded by Scotty Kilmer
Scotty Kilmer, mechanic for the last 46 years and counting, shows how to fix your car if the check engine light ...

P0300 - OBD-II Trouble Code - RepairPal

repairpal.com > Encyclopedia > OBD II Codes
OBD II Fault Code. OBD II P0300. Fault Code Definition. Random, Multiple MisfireDetected. Symptoms. Check Engine Light flashing; Rough running, hesitation ...

P0300 - Check Engine Light Diagnostic Trouble Code ...

https://www.engine-light-help.com/P0300-check-engine-light.html
The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. The computer can also normally identify the ...

Random-Misfire Page

www.random-misfire.com/

Jan 24, 2016 | Cars & Trucks

1 Answer

Service engine light constantly blinking when driving. Going up a hill acts like it don't want to pull. car pooting while I excellerate the engine. I smell like something in my exhaust.


A flashing engine light is an indication of a cylinder misfire. You need to scan engine codes to determine which cylinder is giving you the problem. Most likely a spark plug or ignition wire issue. Possibly an injector issue. If the vehicle is high mileage it may be time for a tune up which will address this misfire issue

Jun 13, 2015 | 2001 Chevrolet Chevrolet Blazer

2 Answers

P1763 and p0303 codes for my 02 jeep grand cherokee. car is super sluggish and shakes when gets to 50mph.


no engine stated.??????????
303 is gross misfire on #3 cylinder. on all cars.
its a for sure thing, means bad combustion on #3 and its power is weak. 1763 is tranny The 7 means that. and is problem2.

ever get a 60k miles tunup this decade?
sparks plugs, spark wires, filters, air and fuel>?
spark plugs dont last life of any engine.
THE CEL blinking (oper guide tells) means that misfire
is burning the CAT converter to a crisp. (raw fuel + air does that)
the opr. guide says get it serviced, fast, dont drive fast or tow anything. all great advice in the glove box.

get a cheap tuneup, and magic can happen in most cases.
misfire has many causes. over 20.
but a tuneup not done, is 99% cause. (due to nobody doing them)
only fate , determines truth, not statistics....
for example you sucked a valve on #3..

if the new spark parts dont fix #3 a compression tests is next.
or an injector balance test say from #3 to one other injector.
all this is like 1hr work, but no engine stated, so.....

Apr 24, 2015 | 2002 Jeep Grand Cherokee

1 Answer

1999 mercury cougar engine is bucking and check engine light blinking and foul odor


very possible convertor is plugged have local muffler shop check temp difference between convertor an exhaust ppipe also check fuel pressure

Jun 25, 2012 | 1999 Mercury Cougar

1 Answer

I have 2001 Silverado 4.3 liter, with a manual transmission. Today I started the truck up and it sputtered, and as I tried to drive it, it shook violently. I could smell exhaust noticeably, and the check...


it is not likely to be a fuel issue ... more likely it is your spark plugs or spark plug wiring. If one of your plugs is not firing right, then that piston will not function normally and cause a violent shake in the engine. This will be more noticeable when accelerating as more fuel is pumped into the piston and is not being burned off properly. This could cause the strong smell of exhaust, as the flow of the exhaust would not be normal.
It is also possible that your timing chain has skipped a tooth, causing a misfire in your engine -- this could also cause the exhaust flow to be abnormal, giving a strong smell of exhaust when the issue occurs.
Another possibility is that you have a bad fuel injector on one of your pistons ... but this is more likely to make your engine sluggish than cause it to shake violently -- usually a bad injector does not shoot enough gas into the piston, rather than pushing too much.
There is also the possibility that you have an issue with your exhaust manifold (though this is less likely and would probably make your vehicle very loud) -- if there is a hole in the exhaust that would cause the strong smell ... and the improper back pressure could cause your engine to work badly. Once again, this is unlikely to cause a violent shake in your engine ... but it is possible, so I mentioned it.
I would first check the spark plugs, then their wiring as these are the cheapest and easiest repairs that could resolve the issue. If neither of these is the problem, check to see if your car is reporting a problem code (under the passenger side of the dash there would be a blinking light -- count the number of blinks and use that number to reference an error code). If your engine is reporting an error code, that should help you diagnose the issue. If the plugs are not the problem, and the engine is not reporting an error code, I recommend taking the vehicle in to a mechanic. A professional with the vehicle in front of them will be able to provide you with a better diagnosis.

Jun 03, 2011 | 2001 Chevrolet Silverado 1500

2 Answers

I replaced the spark plugs in my 2000 toyota Camry and the issue with missfiring appears to have been solved and it seems to drives just fine now. However, the check engine light is still on and there is...


If the check light is still on, you didn't
properly diagnose the original issues
and resolve them

The spark plugs seldom resolve misfire issues

What codes do you have now?

Check that your not loosing coolant
from a head gasket (white smoke)

Mar 10, 2011 | 2000 Toyota Camry

1 Answer

My check engine light came on so I had the computer checked. No real problem so computer was reset. 2 days later my Escape started cutting out like the gas flow wasn't constant? ( I could smell a bit of a...


when a check engine light blinks it indicates a catalyst damaging misfire. vehicle should not be driven when it is blinking. possible problems for the misfire could be easy like worn spark plugs or more difficult like mechanical issues with valves or bad compression.

Nov 19, 2009 | 2002 Ford Escape

2 Answers

99 olds silhouette check engine light blinks.Engine is running rough and the smell of unburnt gas is coming from the exhaust.Also noticed a burning smell coming from between the engine and firewall.


the cat converter is overheating because the engine is misfiring, get it to a repair shop ASAP, I would tow it, but converter damage has already been done.

Oct 19, 2009 | 1999 Oldsmobile Silhouette

1 Answer

2000 SS camaro lacking power producing overwhelming exhaust


did you put the platinum plugs back in.get a noid light test the injector wires make sure they are working . when you hook noid light up these should have a steady blink .if light dont blink just light up.you got pcm problems .if you get no lights you have open wire.besure to check ignition coils that control those misfiring cylinders.

Feb 23, 2009 | 2000 Chevrolet Camaro

Not finding what you are looking for?
1999 Toyota Camry Logo

575 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...