Question about 1999 Mitsubishi Galant

1 Answer

My friend said that i needed a new O2 chip for my car, but at the shop they said all my sensors were acting up. They plugged their diagnostics machine in and it reset my computer fixing the problem; however my car's acting up again. Any ideas on the problem?

Posted by on


1 Answer

What is plugged into your vehicles diagnostic connector under the dash,is called a scanner.
It is not a computer and does not fix anything. It looks inside your vehicles computer, to see what it is doing.

O2 Sensor,not a chip. It is in exhaust pipe or converter, and tells the computer how much oxygen is in the exhaust gases,so the engine can adjust the correct fuel mixture.

The scanner does how every clear your check lights on the dash,they will come back, if you have a system malfuntion.
You can have issues,as you do,with no check light on or no stored codes.

Need to continue to diagnose your problem

Posted on Nov 11, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Car wont go over 20mph

it could be fuel filter, may just need new plug. wires, I've even seem an O2 Sensor make a car act funny. here's what I suggest. Drive it up to you local parts store they will put it on their diagnostic meter for free. The diagnostic with show codes that the parts store can translate into words then you'll have a better idea of what to get instead of throwing money at it with the hope it will fix it. Hop it helps

Oct 15, 2013 | Ford Cars & Trucks

1 Answer

What to do if the code for bad o2 sensor keeps goin off after replaced?

There is not anything you can do without automotive

You need a repair shop

If parts are changed purely because of a code,then your
not diagnosing why the malfunction code was set in the first
place & you need experience,test equipment & usually diagnostic
charts to follow or refresh your thought process

When you said had something replaced, I surely hope that was
not by a repair shop, because they are in business to solve your
problems, not guess or fail at the solution

Jan 28, 2013 | 2005 Dodge Caravan

1 Answer

98 Tracer, higher hp engine, stumbles when let off throttle or when first applying throttle. Acts like a cyl misses occasionally. New egr, sp plugs, and timing belt. 122k on car. Once a shop said needs O2...

Most big auto parts chains will give you a free diagnostic once a trouble code appears. Then you know which O2 sensor is bad or if another problem.

Oct 01, 2017 | 1998 Mercury Tracer

5 Answers

Lexus 2001 RX300 - What is it when the Trac Off, VSC & Check Engine lights are on at the same time while driving? Thanks!

I have no mechanical experience and my Lexus 2001 Off truck, vsc, and check engine lights came on while driving. After a research on the net. I paid 10.00 for a diagnosis and came up with the code P1135 A/F Sensor Heater Circuit Malfunction (Bank 1, Sensor 1). I went to Autozone store in San Diego and purchase the sensor, 170.00 dollars. Went to a mechanic, lift the car up, pull the sensor out under the car and put the new one. The 3 lights went off. No more faulty codes. Labor 25.00 dollars. Except for the lifting of the car, the change of the sensor is like changing a spark plug. It was no difficult task and it took 15 minutes. 7/31/2010

May 25, 2010 | 2001 Lexus RX 300

2 Answers

I've had my Jeep in the shop 3 times over the past

an o2 sensor would not make your vehicle do this the o2 sensor may sending an error code do to the fuel being to rich or to lean while it's passing by.this sounds more like a bad map sensor ot mass air flow sensor try pulling them out and cleaning them

Jan 12, 2010 | 2004 Jeep Grand Cherokee

2 Answers

96 Dodge Neon O2 sensor Ckt No Activity bank 1 sensor 1----how do I replace the sensor, will that correct a problem with the check engine light?

That would correct the problem, the O2 sensor is on the exhaust manifold or on the exhaust manifold down pipe. If you go to Auto Zone, they will have the O2 sensor you need and also the loaner tool you may need to remove the O2 sensor. Auto Zone also can give you the step by step instructions to replacing the O2 sensor in about 30 min. Once you located the O2 sensor, disconnect the wire harness and use the O2 sensor socket to remove the sensor from the exhaust. It's like removing a spark plug, to install the new O2 sensor is just to follow the same procedure in revers to the removal. Good luck.

Oct 28, 2009 | 1996 Dodge Neon

1 Answer

2002 ford expedition "service engine soon" light keeps coming on. I've had the O2 sensor replaced three times in the past month, now the next day or two after the sensor replacement the light comes back...

get a new mechanic, need to check for vac. leaks, poss needs tune up. alot O2 codes i have gotten have been created by vacuum leak or warn out plugs, rarely have i had to replace a O2 sensor.

Oct 14, 2009 | 2002 Ford Expedition

2 Answers

About a jeep grand cherokee

There is a possibility that your security system is at fault, but I think it more likely that there is more at play. Most of the time I run into the wrong or a new key causing the issue. Crankshaft position sensor is more likely. Also the camshaft position sensor is a possibility. There are a few others. If you have the knowledge and some test equipment, it is possible to narrow them down. There is a possibility that a scan tool will be necessary.
If you are uncomfortable with diagnostic testing I suggest having a reputable shop look at the Jeep.

Sep 01, 2009 | 1998 Jeep Cherokee

Not finding what you are looking for?
1999 Mitsubishi Galant Logo

86 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Experts


Level 3 Expert

80417 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

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

Answer questions

Manuals & User Guides