Whats up guys, here's the problemS, i have a 1996 Chevy Blazer and my SES light came on, so i stopped by autozone for a free scan. The codes were P0327, P1886, P0153, P0300, P0141, and P1361.I hadreplaced the plugs, wires, cap & rotor, tps, vss, and both solenoids (all parts are AC delco) in the trans 2 weeks ago, any suggestions on what the solution(s) could be? oh yeah, the truck is in 3rd gear limp mode also...[:@]

 

P0141 - HO2S Heater Circuit Bank 1 Sensor 2
P0153 - HO2S Slow Response Bank 2 Sensor 1
P0327 - Knock Sensor 1 Circuit Low Input (Bank1) - Description from the GMT360 platform
P1361 - Ignition Coil Control Circuit Low Voltage
P1886 - 3-2 Control Solenoid Electrical - Either the 3-2 SS Valve Assembly is bad or there is a problem in the wiring between the PCM and the transmission.

From looking at all of these codes, I would suspect a grounding problem somewhere in the system.

 

okay , this may be a newbee question, but how do i found out where the bad ground is?

 

My blazer was poping up all kinds of codes to. So I check the fuse box for full curuit fuse that will be where your ground will be bad. just use a test light. My emc fuses where loose there will be two of them. They are your computer fuse for the truck. I hope this helps.

 

thanx, ill be checking them over the weekend

 

okay guys, i had all the fuses checked, and they were all okay. i have a friend with a 96 S10 that runs great, so i put his ecm,numbers match,in my truck to see if that was the problem and it ran like crap!!! sputtering, spitting out black smoke, and BARELY ran. any suggestions on what the problem COULD ACTUALLY be? HEEEEEELP!!!!!

 

You check them and clean them. There are two main grounds on the engine that the PCM and most of the sensors use. They are on the back of each cylinder head. Difficult to get to, but if bad, can cause a host of problems.

 

aw well, it seems the 3rd gear limp mode prolem was a lil too much stresson my engine, started ticking this morning on the way to work, luckilly, ihave another 4.3 AND trans out of a 97 blazer(buddyis doing an LT1 swap).....