Drove my 09 300c through 5 or 6 inches of water check engine light was flashing someone told me check filter it was wet I replaced that now light isn't flashing it just stays on what should I do now??

Christian

• 53 Answers
• Posted on Dec 29, 2008

SOURCE: #5 cylinder misfire

I have a corolla and had #4 cylinder misfire also diagnosed at autozone. After changing the spark plugs, problem persisted, along with the same error code, so they recommended changing the spark plug wires, and that is what fixed it. I would have changed the rotor cap too, but was low on dough. Glad that was not the problem.

SOURCE: 2003 AUDI Quattro 3.0 check engine light(MIL) stays on

Before you do anything else you are just going to have to read the codes. So buy the maintance book at autozone,locate the little juction box on the fire wall and jump the terminals with a little wire. Then of course sit in the drivers seat turn on the key(do not start) and read the blinks. Then you will know what the problem is.

SOURCE: DROVE THROUGH PUDDLE , CHECK ENGINE LIGHT ON

the flashing represents misfire codes i would try a set of autolite plugs and go from there of course you will have to go somewhere to get the light turned off possibly auto zone

Harvey N Tawatao

• 3854 Answers
• Posted on Nov 17, 2009

SOURCE: 2004 denali check engine light stays on

A code P0100 may mean that one or more of the following has happened:
The MAF may be disconnected, or a wiring connection may be bad, or the MAF may be faulty

Then start with the cheapest, easiest repair procedures:
Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires.
Unplug and reconnect the MAF wire harness
Check the voltage of the MAF sensor
Clean the MAF with MAF cleaner
Replace the MAF sensor if cleaning does not help.

Your car has either a P0171, P0174 lean fault code or both stored in the computer, these codes are based on Oxygen Sensor (O-2) readings. A lean code or codes indicate that there's too much oxygen in the exhaust. Remember parts stores have employees that have good intentions but they may not have the experience necessary to interpret what the trouble codes really mean. These codes are based on oxygen measurements in the exhaust. A common mistake with lean codes is to replace the oxygen sensors. This could be a very expensive mistake that will not fix the problem. Especially if both codes are present, because the chance of both O-2 sensors failing at the same time is very unlikely.

Most likely the cause is a vacuum leak. A vacuum leak can be caused from a vacuum hose, intake gasket or maybe even a leak in the air intake hose from the MAF (Mass Air Flow Sensor). Listen for a hissing sound that may lead you to the source of the problem.

Aftermarket air filters that use oil on the element can sometimes damage the MAF. Over oiling the air filter may allow some excess to get on the MAF sensor wire or element. This can alter the reading, fooling the ECU into seeing more or less air flow therefore changing the air/fuel mixture incorrectly. I once worked on a car that would not start that had a problem with a MAF. When looking at the wire in the MAF, there was a burned piece of trash that made it's way past the air filter. After cleaning the sensor the car ran perfectly. The ash that was on the MAF sensor wire was altering the reading by enriching the mixture so much that the car could not run. After talking with the customer, he said the air filter was just changed. This was obviously when some trash got into the air intake hose that settled on the hot wire of the MAF.

According to my code scanner book, P1300 is GM-specific for "Ignition Coil #1 Primary Feedback Circuit".
So I'm guessing that the P1301 is also related to coil/misfire issues and replace that coil and see if it helps.

Before you get started with all the problems, they are all related with the MAF sensor, Clean the MAF first and check the wire harness and all the fuse. There is a fuse for the O2 and MAF sensor, so check that. Good luck and keep me posted.

SOURCE: Have 2000 Toyota Camry XLE. Check Engine light

What your asking, is how to make a malfunction light
go away from your dash, so you can forget you have a
problem & make no attempt to repair the car

Until you find & resolve active OBD2 Codes that actually set
a MIL or Check Lamp it will keep coming back

Every time you clear a code you have to run a drive cylce in
some cases to start the procees over, as you need those codes
to diagnose the issues

The codes that are there, do not tell you what to replace

Without writing a book here, just study OBD Systems online &
take the car to a repair shop

It is beyond your ability at this time to figure out