hey fellas,

what can i do, or where can i go to test for pressure to see if i need to replace my catalytic converters or not.

thanks...

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'86WS7
Ram Air...
*EiyseWhite*

 

to test to see if the cat is clogged you remove the o2 sensor and see if it revs better, i have no idea about flow checking.

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late model 91 rs, fully loaded, auto, t-tops, red leather, paint- gm red and yellow blend (light red), custom painted 16" Camaro rims
305 tbi flat base 14"x3" with K&N, hypertech chip, accel super stock plug wires, only use full synthetic oil and delco filter, 2 1/2" cat delete pipe, Edelbrock 3" cat-back
MTX sub and amp, Bose all around
vic_v8@yahoo.com
street kills: New v-6 stang, 96 v6 camaro, totally killed '86 SC Camaro (305), 91 z 28 with 305
15.854@87.57 (I think I could have it 15.5 with good tires and two more runs)
next month: rest of ultimate tbi

 

The manual specifies to replace the O2 sensor with an adapter and pressure gauge, then run the engine to cruising rpm and record the reading. I don't have the number with me right now, but there's a threshold that indicates a restricted exhaust.