20 Most Recent 1999 Mitsubishi Galant - Page 9 Questions & Answers

http://www.obd-codes.com/p0421

Try spraying pb blaster or similar on the shifter cable linkage on top of the transmission.
If that doesnt help u may need to take apart the center console to access the shifter assembly
it may be gummed up with pop, coffee etc begine spilled down in the cupholder shifter area .

P0170....Fuel Trim (Bank 1)

from reading the code it is about fuel and its the mixture isnt correct ,this i think is being caused by a faulty O2 sensor on bank one but as iam in europe and out gallants are normally a 4 cyl engine i am afraid i couldnt tell you whats bank one weither its the left side or the right side but if you can find out what side is bank one then its just a case of testing the O2 sensor with a automotive meter then changing the appropiate sensor as theri are two sensors fitted one before the cat and one after but without a tester on it its difficult to say but i would check the after the cat sensor first.

You have 3 in the front and three under the intake. You will have to take off the intake to change them.

due to battery problem.your LIGHT ON THE DASHBOARD KEEPS FLASHING .

I have the same exact problem on a 2003 Galant. Worked fine until today.

Just a stupid little suggestion, check that the exhaust in not knocking on something - check all the exhaust suspension rubbers and shake the exhaust system around to see if you cannot repeat the knocking.

cheek your power supply and pettrol ,batarry

if u open the fuse box most have diagrams showing you fuses and there locations or numbers if fuse is there you may have a bad connection this is caused by corrosion of a lose wire

You will need to have a " draw test" performed to realy find out what's wrong.

look in your owners manual and locate fuse cluster or (BOX) search for inst lamps and check fuse. replace if blown, it will appear a black or bluish color or haze in the center of fuse. Or use test light and check. the top of the fuse has two small metal contacts you can touch with the tester and if it has power on one side only it is bad, if both contacts have power than its good and ther is a possible wire failure that you will have to trace down from the box. Also your instrument lights have a dimmer option on the switch or a wheel like switch which controls the brightness of your lights for day and night glare, make sure that this adjusable switch is not in the off position. It is also possible to check this dimmer switch with test light for operation.

You have to remove the sensor with 7/8 wrench or a oxygen sensor socket. Or loosen the exhaust pipe at the manifold so the pipe will fall out of the way

i have seen this before check distributor

replace temp sensor and fuel filter

dissconect the hot side cable for 5 minutes then conect it back on,it should stop blinking.

my fuel presure drop due to rpm 4000...how to solve this problem..