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Dual Exhaust System Causing P0420 and P0430 on 1996 Toyota Tacoma - OBD-II Workaround Discussion
My 1996 Toyota Tacoma has been modified with a dual 3-inch exhaust system, twin catalytic converters, and twin dual chamber Flowmaster headers. The low backpressure significantl...
96 taho | P0420P0420, P0430, p1351 on 97 Chevy Silverado 5.7L
I have read the article on this topic. I drive a 97 Chevy Silverado, 2WD 5.7L 205k miles. I replaced the coolant temp sensor, and checked O2 sensors. Bank 2(P0430) had a bad sen...
97 Chevy Silverado 5.7L | P04201996 Mercury Sable 3.0L V6 P0401 and P0430 Fault Codes: Causes and Fixes
Last night, when I started my 1996 Mercury Sable with the 3.0L V6 engine, the Service Engine Soon light was illuminated. After connecting a OBD2 scanner, I found two diagnostic ...
1996 mercury sable | P0401P0430 Catalyst System Efficiency Below Threshold - 1997 Mercury Mountaineer V8 AWD Diagnosis and Repair Options
I'm experiencing a P0430 OBD2 fault code on my 1997 Mercury Mountaineer with a V8 engine, automatic transmission, and all-wheel drive. The vehicle runs smoothly—no rough idle or...
1997 Mercury Mountaineer | P0430P0430 OBD2 Code on 2003 Chevrolet Z06: What Does It Mean and How to Fix It?
Hello everyone, I'm new to this forum and seeking help with a recurring issue on my 2003 Chevrolet Z06. The vehicle has recently started displaying the P0430 diagnostic trouble ...
LOST | P0430