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97 3.8 P0146 & P1361


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#1 Miyoko Rei

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Posted 19 April 2017 - 08:04 PM

Yesterday I got P0146 - No Activity Bank 1 Sensor 3 and whatever the code is for slow response on the passenger header 02. I reset the codes after ensuring everything had a snug fit. Today I got P0146 again and P1361. I was cruising at about 30-35 tonight and the engine kept stuttering. Did this for about a mile and half. Then it stopped. 

 

P0146 - From what I can gather, this is either a faulty sensor or bad cat. Key on and engine off, it does get warm. I don't have a multimeter anymore to backprobe it. 2yr old gave it a toilet bath, /sigh. 

 

P1361 Ignition Control (IC) Circuit Low Voltage - ICM module faulty from heat soak? Not sure, couldn't find much on this one.

 

Any help would be appreciated.



#2 JOE68

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Posted 20 April 2017 - 03:17 PM

146 is usually bad sensor or wiring....  420 is cat probs      you need to get a meter and check ign volts     1361 is a vin specific code I would have to look in scanner to chaeck that one


Edited by JOE68, 20 April 2017 - 03:35 PM.


#3 Injuneer

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Posted 20 April 2017 - 03:58 PM

Detailed description of the 1361 code is in the 96 (should be the same as 97) factory manual. Related to the ignition control circuits.

https://www.mediafir.../?40mfgeoe4ctti

1994 FIREBIRD FORMULA

FRED

381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC M48 Pro engine management - 8 LS1 coils - 58mm TB - 74# injectors - 300-shot dry nitrous - TH400 - Gear Vendors 0.78:1 O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor

 

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#4 Miyoko Rei

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Posted 20 April 2017 - 06:41 PM

Thanks, Ill get under and recheck the wiring on that sensor. If it looks good, I'll swap it with the pre-cat sensor. That should change the code to the new position if its the sensor. If it stays the same, I'll know it's something with the wiring. I drove it quite a bit trying to get both codes to set again. P1361 never popped back up. Ill grab the 96 manual and check the diagnostic for it. P0146 popped with any aggressive acceleration. I got it to consistently turn the cel on. If I babied it, it never set the DTC. I had to stop early because the EGR tube on the driver header burned through the rad hose. That's somewhat irritating because I almost never got the EGR tube bolted in place. I'll have to see if I can tweak it out of the way or shield the rad hose with something.

 

https://scontent-dft...11f&oe=5982080F






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