need help identifying something

Headlights to tailights and everything in between.

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sleezyt
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Posts: 35
Joined: Mon Nov 07, 2011 8:09 am
Location: vancouver island, BC

need help identifying something

Post by sleezyt »

i just bought a new car, 92 legacy turbo and the guy told me that the previous owner had a chip installed and thats why this was unplugged

http://s1102.photobucket.com/albums/g44 ... A-orig.jpg

and this looks like someone did it up them selves comes off the o2 bung thing on down pipe

http://s1102.photobucket.com/albums/g44 ... 1-orig.jpg

my question is how would i know if its been chipped. he bought it from vancouver bc 3 years ago. so maybe a revtronix chip? their is no supporting mods or cel. car is stock
1992 Legacy SS
vrg3
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Re: need help identifying something

Post by vrg3 »

That first picture shows the connector removed from the pressure exchange solenoid. Is there, by any chance, a little resistor shoved into the connector under that electrical tape?

I have a hypothesis:

I'm thinking the previous owner bought one of those "Performance chip $2.99 RESISTOR MORE POWER!" things off eBay -- which is usually just a resistor to stick in line with an IAT sensor or some other such nonsense -- and stuck it in there. By coincidence, the resistor provdes the ECU with enough load for it to think it's the solenoid, so it doesn't throw a trouble code. If that's the case, then the ECU is getting incorrect barometric pressure readings.

So take a look under that tape. If you find a resistor in there, pull it out, and plug it back into the solenoid and don't give it another thought.

If you really do believe there's a chip in there, and somehow one that requires the pressure exchange solenoid to be replaced with a resistor (which in my opinion would be ridiculous), take out and disassemble the ECU to see if there's a chip installed in the socket.

I don't think the oxygen sensor wiring has anything to do with the "chip" question -- someone probably just bought a $50 universal oxygen sensor instead of a $100 plug-and-play sensor.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
sleezyt
In Neutral
Posts: 35
Joined: Mon Nov 07, 2011 8:09 am
Location: vancouver island, BC

Re: need help identifying something

Post by sleezyt »

you were right their was one. its all plugged in now thanks
1992 Legacy SS
vrg3
Vikash
Posts: 12517
Joined: Sun Nov 03, 2002 2:13 am
Location: USA, OH, Cleveland (sometimes visiting DC though)
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Re: need help identifying something

Post by vrg3 »

Cool. Have fun doing your own modifications on your newly-stock SS!
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
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