Well, i just recently picked up an 87 GTA with a powerplant out of a mid 70's car. now i used a jumper wire to put the car into diagnostic mode and i got a code 13. i go and look to see where the o2 sensor is and it isnt there! now seeing as there isnt one, im probably gonna have to wire one up after i get a fitting welded into the exhaust. just wanted to know how i would go about doing it or should a shop handle it.

Also wondering if this would affect drivability i.e. when i lightly tap the throttle the car will move but when i acctually hit the gas, say halfway she goes nowhere. Also on occasion i can get the car to a good speed but then she starts bucking wild. set TPS and IAC so i can rule those out


[This message has been edited by 87POSGTA (edited August 16, 2001).]

 

If you don't have an O2 sensor the computer won't know whats going on. I'm surprised it even runs!
Definatly get that fixed first

Brendan

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1987 IROC-Z L98,SR,EB 6085's,LPE 219/219 SR Cam, Crane 1.6RR, EB TPI Base, 58mm TB, Stock T5, 30lb SVO, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, Aluminum DS, 94 Disk Rear, Adjustable Prop Valve, Precision 3.73 Gears, Weld in Sub-Frame Connectors, Hotchkis LCA's, KYB Shocks/Struts, Poly Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm, Big stereo, 730SD Conversion.

To see the ROC, Check out the webpage Here

 

If there's no O2 sensor, the bias voltage goes to 450mv, all other ECM fuel and timing controls will be based on this, regardless of the actual A/f Mixture.

Obviously normal throttle driving will/can suffer.

 

umm you neglected to state the obvious, like is was still fuel injected? obviously if its not computer controlled you dont need an o2 sensor. just makin sure cuz you got an old power plant and some people likt to ditch the fi system

http://people.ne.mediaone.net/gdm/

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87 z28 bowtie aluminum 420small block dry sump crower lt. wt. knife edged crank oliver lt wt rods brodix track 1's super ram intake slp 1 3/4 headers accel dfi art carr 700 r4 3.42 gears ssm sub frame/ladder bars.....other parts on the way ,soon to be finished!! couple more weeks!!!

 

its still the TPI, everyones telling me to go carbed because of all the problems im having but im gonna stick it out and see if i can get her to run right

 

I've been fighting problems that a carb would fix for 3 years now because I refuse to give up on TPI. Don't give up on it!!!


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