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Runs fine but the check engine light keeps blinking 1 pause then 2 quick blinks then repeats

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Code 12 indicates the end of a code sequence. It is not a trouble code. It will blink if there are no codes to let you know there are no codes.

Posted on Sep 28, 2010

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My car wont stay idling


Lets start with figuring out why the check engine light is on. You can get a blinkout of the the code by switching you key to the on and off position three times quickly and leaving it in the on position on the final time (note, do not take the key so far that it tries to start the engine). So start with the key in, and engine off, quickly turn the key to on, then off, then on, then off, then on and leave it there. Now watch your check engine light. It will blink out any codes that may be stored. The blinking will have breaks between each code and each code is a two digit number. For instance, blink short pause, blink blink, long pause, blink, blink, blink, pause, blink, blink, would be codes 12 and 32. I believe the final code is 55 and just simply means "end of codes". That should at least tell you if its an issue the ECU has detected. You can do a quick google search to find out what each code it spits out means. As for a guess as to why it isn't idling...I've seen everything from a failing fuel pump (inadequate pressure), to a clogged EGR valve cause this. Could be quite a few things unfortunately. Good luck!

Feb 25, 2012 | 1995 Chrysler LeBaron

1 Answer

I have a 91 Buick Century that dies after a few minutes.


Fuel or ignition problem? Right after it dies, check for spark at a plug. A bad coil will often work till it's warmed up, then fail. If you still have ignition spark after it dies, or if it starts right up again, then it's something else.
Check the fuel pressure to make sure it's at proper pressure. Also scan the computer for any trouble codes that are related. It's easy on your car if you understand how the flashing light translates to two-digit number codes. Use a wire or paperclip to bridge terminals A and B of the diagnostic test connector protruding out from bottom of dash. It's a 12 pin connector. A and B are the two upper right terminals on it. Now turn key on and the check engine light will begin blinking the codes. Code 12 is diagnostic mode-one blink, pause, pause,blink, pause blink. See? 22 would be blink, pause, blink, pause, pause, blink, pause, blink. See? 33 would be three blinks, short pause and then 3 rapid blinks. (I"m going blink crazy!) Well, get the codes-they are two digit codes, and will keep repeating, lower numbers first and in succession, over and over while in diagnostic mode. Maybe an idle sensor fault will show up.
Good luck.

Dec 06, 2011 | Cars & Trucks

1 Answer

Brainbox light comes up on the dashboard after driving few kilometres. I change it with another one but still the same problem. Toyota camry 1994 model.


Well, that's the check engine light I think. It is saying something is not normal. You can read out a trouble code to give you an idea of why it is on. Turn the ignition on, but engine stopped, and with a piece of wire bridge terminals TE1 and E1 in the service terminal box, at one rear corner of the engine compartment.

The check engine light will then blink. A steady blink 4 times per sec is "all normal".

Trouble codes are 2 digits, and these will be blinked - first digit - pause - second digit - repreat.

So the oxygen sensor fail code (a common one) is 21, and will show 2 blinks - pause - 1 blink - repeat.

There are 22 of these codes

Nov 18, 2011 | 1994 Toyota Camry

2 Answers

Toyaota Camry 1994 engine won't start, Engine light on


I would check for fuel,(pressure and injector pulse), spark, and compression, before checking any codes. Lack of any of these basics can result in codes, and then you waste alot of time chasing a symptom, instead of the actual problem.If more people followed basic diagnostics, which always come back to these three basics, rather than chasing codes first,they would find no starts much more quickly.

Nov 14, 2011 | 1994 Toyota Camry

2 Answers

Error codes for 1991 dodge spirit


Turn the key to run then off, back to run, then off, then to run and leave it on. The check engine light will be on and will then go off and then on again according to the codes the engine controler happens to have in it. If the check engine light was on when you stopped the car, then there is at least one code in the controler. The light will blink the codes like this.
Cycle the key three times and leave on on the third time. light on for about 3-4 seconds then goes out for about 2 seconds and then blinks one time and goes out for 3 seconds this is for the no.1. Then the light blinks 3 times and goes out for about 3-4 seconds. You have the code 13. You could have a whole string of codes in the controler memory. It could be something like this. key cycled 3 times, light on for 3-4 seconds, then blinks 1 time, pause, 3 times, longer pause, 2 times ,pause 4 times, longer pause, then 5 times, pause 5 times the goes out.
This is code ; 13,24, 55. code 55 isn't really a code. It just tells you it's the end of any codes the controller has.
If you disconnect the battery and hook it back, you will have code 13 which simply mean 'battery disconnect'. It will errace it's self after several starts if it's not disconnected again. If you cycle the key and you get 55, this means there are no codes recorded at this time.
You will allways get 55 when checking for codes wheather there are fault codes or not. The light on for a few second before the codes start flashing is only a bulb check. Some codes like 13 will not turn the check engine on, but but will leave a code for diagnostic purposes only. If you have the check engine light on and accellerate and the light begains to blink, then the controller is telling you that you have an engine miss and are running the chance of burning out you're catalatic converter if you continue driving. Sometimes its advised to disconnect the battery after you have recorded the codes.
This will erase all codes that are present but were generated by conditions that aren't pertanent to the present condition. and then the codes that come back are the real ones to address.
This link: http://minimopar.knizefamily.net/fault/index.html
Contains the entire list of Chrysler Engine Error Codes.


Mar 03, 2011 | 1991 Dodge Spirit

2 Answers

Service engine light comes on , what kind of scaner is needed


you can use a standard scanner with a adapter or you need a paperclip. You find the diag connector under the driver dash board. If you put the paper clip from A to B and turn the ignotion on (dont start the car) and watch the check engine light. The light will blink a code three times and then move to the next code if there is any. It will blink like so for example if the code is 12 it will blink once pause then blink twice and repeat three times. It will then display any other codes. Remember that it will show each code three times before moving to the next code. You can research the codes online, at any autozone or post them here and I will tell you what the meanings are and try to give you a course of action to follow.

Nov 30, 2010 | 1995 Cadillac DeVille

1 Answer

What is the codes for a 95 dodge caravan 3.0 v6 it's blinks twice


The 95 Caravan is great for giving you trouble codes. However they are two digit codes. There should be a blink sequence followed by a short pause then another blink sequence (example 2 blinks, short pause, 3 blinks... Then 5 blinks, pause, 5 blinks which means no more codes. Turn key from off to run three times and leave in run and watch check engine light to count blinks. Disconnecting negative terminal on battery for 30 seconds clears codes.

Sep 09, 2010 | 1995 Dodge Caravan

2 Answers

Car almost didnt start then s light blinked the


Hi,

The 'S' light is also your diagnostic indicator....so, the answer lies in the 'sequence' which the S light blinks.

Codes:

Long blinks: 1st digit
short blinks: 2nd digit

e.g.1 - if there are 6 short blinks (followed by long pause) then repeats 6 blinks again, the code = 6.

e.g.2 - if there is 1 long blink, then 4 short blinks (followed by long pause) then repeats again, the code = 14.

The ECU may show more more than one code.

Once you determine the correct code/s, post them here so someone can assist you further.

Cheers,

Aug 12, 2009 | 1991 Honda Accord

1 Answer

Check engine light blinks


i believe there is a guide in a haynes manual for your truck maybe you can try and get one and see.

May 20, 2009 | 1986 Toyota Pickup 4WD

2 Answers

Engine indicator lights on


Yes it does have a connection with the ECM (Engine Control Module) or PCM (Powertrain Control Module) but being that the vehicle is a 94 it is OBD I (On Board diagnostics First Gen.) so you will need a Toyota specific scan tool to retrieve the code to see what codes you have stored.

Dec 03, 2008 | 1994 Toyota Corolla

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