cel problem

[91gsdohc]

whats up, i have a 91 5speed tsi awd i have a check engine light, and i just got the car registered. so i tried to reset the ecu by unhooking the negative batt. terminal. after a min or so the check engine comes on and i was wondering if theres a why i can get it off for a while.???

some background on the light..... the light is not a constant light it will go on and off from what i think i know the car has a missfire(at least thats what i think im hearing? changed wires but not plugs so i will change those..

and i went to autozone to read the code and guess what they only have obd2

so does anybody know a place like that,, that can check obd1.. theres an advanced auto some where around here but havnt tried them thanks for the help

 

[9!'clipseDOHC]

Most parts stores won't check obd1, only obd2. From my experience, most shops charge around $90 just to read the code.

You can read your codes for free by following this method: http://www.dsmtuners.com/forums/articles-tuning-ecu/319844-1g-code-reader-cel-code-reader.html

Also a logger or ECMlink will allow you to read your codes as well as MANY other inputs.

Hope this helps!

 

[91gsdohc]

Most parts stores won't check obd1, only obd2. From my experience, most shops charge around $90 just to read the code.

You can read your codes for free by following this method: http://www.dsmtuners.com/forums/articles-tuning-ecu/319844-1g-code-reader-cel-code-reader.html

Also a logger or ECMlink will allow you to read your codes as well as MANY other inputs.

Hope this helps!

yea it does... the loan a tool at autozone would loan me a volt meter right?


and any idea why the light came right back on after disconnecting the neg battery term for about an hour



and about dsm/ecmlink when i get the 500 or something to spend ill get one

 

[9!'clipseDOHC]

yea it does... the loan a tool at autozone would loan me a volt meter right?


and any idea why the light came right back on after disconnecting the neg battery term for about an hour



and about dsm/ecmlink when i get the 500 or something to spend ill get one

Not that I can see from their site: Loan-a-Tools | AutoZone.com

If the code has to do with the ECU not getting the proper voltage from one or more of it's sensors then it will keep reappearing regardless of you disconnecting the battery.

 

[91gsdohc]

Not that I can see from their site: Loan-a-Tools | AutoZone.com

If the code has to do with the ECU not getting the proper voltage from one or more of it's sensors then it will keep reappearing regardless of you disconnecting the battery.

so with sensors we have the

maf... im running lean so this might be it? just want to add i have a 16g with no fuel support

so its safe to say its a sensor?

im just going to have to get a volt meter and take it from there
ive looked at the autozone site i dont understand all that because it bring you to prices and all that im just going to have to check tomorrow

 

[9!'clipseDOHC]

so with sensors we have the

maf... im running lean so this might be it? just want to add i have a 16g with no fuel support

so its safe to say its a sensor?

im just going to have to get a volt meter and take it from there
ive looked at the autozone site i dont understand all that because it bring you to prices and all that im just going to have to check tomorrow

I wouldn't assume anything.

If you have a Harbor Freight near you they have Digital Multi Meters from $5 - $20.

 

[91gsdohc]

I wouldn't assume anything.

If you have a Harbor Freight near you they have Digital Multi Meters from $5 - $20.

no idea just moved out here but i do have a auto zone 3-4 blocks away tho

 

[And_44]

Can also get a 12v buzzer from Radio Shack and hook that up and count the long and short buzzes to get code.

 

[91gsdohc]

Can also get a 12v buzzer from Radio Shack and hook that up and count the long and short buzzes to get code.

so with that it buzzes the buzzing would come from the unit?

is this what your talking bout http://www.radioshack.com/product/index.jsp?productId=2062397&CAWELAID=107592165#

and wheres the wires?

 

[9!'clipseDOHC]

so with that it buzzes the buzzing would come from the unit?

is this what your talking bout 76dB Piezo Buzzer - RadioShack.com

and wheres the wires?

There is a picture of it on the link that I posted.

 

[91gsdohc]

yea but where are the wires thats why im asking it looks the same but i just want to make sure

 

[And_44]

Nah thats not it. It is a square white box about size of a quarter with a red and black wire coming off of it. Should cost about 3-4 bucks. They have it in there drawer setup with the capacitors, resistors, ect. Think its labeled as a "12 volt electrical buzzer"

 

[9!'clipseDOHC]

yea but where are the wires thats why im asking it looks the same but i just want to make sure

That looks like it to me, it looks like you can see part of a red wire behind it. I'd just go to the store though to make sure though.

 

[steve]

Nah thats not it. It is a square white box about size of a quarter with a red and black wire coming off of it. Should cost about 3-4 bucks.

You don't really want the white box one, you want the one in the link RS 273-059.

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It draws less current and makes a single tone.

 

[91gsdohc]

so i got the 12v buzzer, now i cant find where it need to go, the picture on the link shows it to be, right above the fuse box, and i dont seem to have one there....

nvm found it

ok so im hearing is one beep then it will stop for a while and beep another 4 times so thats 14? tps?, how would i go about dealing with that

 

[steve]

Code 14 is a TPS fault.
The TPS could be misadjusted, worn out, broken wires, damaged ECU or the IPS could be stuck closed, broken, shorted wire....

Time to get out the manual and start checking.

 

[91gsdohc]

IPS? idle position sensor?

how would i be able to adjust the tps?

and should i pull my ecu and look?

 

[9!'clipseDOHC]

IPS? idle position sensor?

how would i be able to adjust the tps?

and should i pull my ecu and look?

Yes IPS = Idle Position Sensor.

Here is one method to check the TPS: TPS Adjustment

 

[91gsdohc]

thats helpful. but is there any way i can try something with taking the TB out of the car?