What is up with this car!!!

[turbo06]

Hey fellas I git this 89 NA and the damn thing dosn't pass smog. The code that comes up is 71 and i looked it up and its the EGR. I replaced the VSV and uncolged a couple of vacum lines but the damn check engine light keeps coming on when i take it to get smoged? :1zhelp:

 

[Fuzz420]

new cat maybe

 

[Nick M]

What are the actual readings from the test?

 

[mrnickleye]

There is no 'code' for a bad cat. That started with OBD II system in '96. The 02 after the cat measures cat efficiency.

California car? It uses an EGR temp sensor. maybe ??? that?? bad??? sets the code??

 

[supramacist]

Pull that 1 fuse and say F it. kidding.

 

[turbo06]

Ok i figured it out. The fagget that i bought the car from didn't plug in the sensor for th EGR which is why the check engine would turn on ending in atutomatic fail of smog.

 

[jetjock]

Code 71 is set only on California cars when the ecu checks for an increase in egr temp (in order to verify egr operation) and doesn't find it. Btw, instead of slamming the prior owner you might ask yourself what kind of Einstein takes his car in for a smog check with the MIL on.

 

[supra90turbo]

instead of slamming the prior owner you might ask yourself what kind of Einstein takes his car in for a smog check with the MIL on.

::snickers::