87 Camry check engine light On question about what makes light come on?

Asked by Mar 30, 2010 at 01:03 AM about the 1987 Toyota Camry DX

Question type: Maintenance & Repair

Hello,
I have a 87 Camry 2.0 5 speed with 169k on it.  The car has a check engine light that comes on after a few minutes of driving it seems to be on a timer as it comes on after a couple of minutes not right away.  I need some help here as this is a older car.  What makes/triggers the check engine light to come on in a 87 Camry and what can I do to find out what is the problem?  Also I might add I saw a diagnosis plug near the battery under the hood I was wondering where can I get a device that will plug in there and let me know what the light means?  I guess I should 1st ask do they make a device like that for such a older diagnosis system on that car?  
Also is there a code system on that car like on my Honda where I can find out what that engine light means? Thanks so much for the help as I have no clue what to do 1st here or how to find out what is going on.
Dave

4 Answers

8,780

There is no single thing that always makes the light come on. You need to jumper terminals TE1 and E1 of the check connector with a paper clip or piece of wire while the key is on. This will make the light flash out the code. Then look it up online.

Hello there, I did the paperclip test it was EXTREMELY HARD because you have to get the correct size paperclip then you have to clean/wipe off the dialectical grease so you get a good connection. Eventually I got it and it rendered code 21 Main o2 sensor as follows below details. Main oxygen Sensor Signal Main oxygen sensor circuit Main oxygen sensor ECU   During air–fuel ratio feedback correction, voltage output from the main oxygen sensor does exceed a set valve on the lean side and the rich side continuously for a certain period. My question now is can someone please advise me what website or section in the manual that will give me instructions on how to change the Main O2 sensor. Thanks for your help as I don't have a clue. Dave  

8,780

That's why I use a piece of wire. It can be tricky but is a lot cheaper than a scan tool. The o2 sensor is the sensor that screws into the exhaust system. To remove it disconnect the plug and us a o2 sensor socket to remove it. It might need a lot of penetrating oil to get it loose. Then install a OEM style replacement sensor with some 02 sensor friendly anti-seize.

Hello there, Thanks for the help I feel so silly I found the problem it was just the wire to the O2 Sensor it corroded and broke off. I just spliced it back together and good to go now thanks. Dave

Your Answer

Add photo

Related Questions

Camry

Looking for a Used Camry in your area?

CarGurus has 98,047 nationwide Camry listings starting at $1,250.

ZIP:

Search Toyota Camry Questions

Toyota Camry Experts

#1 Reelin68
Reelin68
Reputation 11,330
#2 FordNut
FordNut
Reputation 5,660
#3 Tom Demyan
Tom Demyan
Reputation 4,070
View All

Related Models For Sale

Used Honda Accord
886 Great Deals out of 82,090 listings starting at $999
Used Toyota Corolla
923 Great Deals out of 74,282 listings starting at $1,500
Used Honda Civic
705 Great Deals out of 77,526 listings starting at $1,200
Used Hyundai Sonata
642 Great Deals out of 51,625 listings starting at $1,300
Used Nissan Maxima
359 Great Deals out of 25,313 listings starting at $1,400
Used Toyota 4Runner
328 Great Deals out of 20,882 listings starting at $1,990

Used Cars For Sale

2017 Toyota Camry For Sale
18 Great Deals out of 56,941 listings starting at $16,477
2016 Toyota Camry For Sale
119 Great Deals out of 7,066 listings starting at $12,977
2015 Toyota Camry For Sale
113 Great Deals out of 5,878 listings starting at $10,977
2014 Toyota Camry For Sale
277 Great Deals out of 7,891 listings starting at $8,900
2013 Toyota Camry For Sale
100 Great Deals out of 2,530 listings starting at $7,717