94 blazer 4.3 Vortec (again)

[Hayden]

This thing is killing me. I'm coming up with codes 13, 22, 23, 32, 34. don't know what 13 is yet but 22 is tps which I changed. 23 i believe is map which i havent touched yet. 32 is egr which i will change once i come up with the $205.00. 34 i believe is mat which i havent touched. I tried the seafoam in it and boy did it smoke after i started it back up after the 5 minutes. surprised fire dept didnt show up lol. The engine starts fine but will stall every now and then when I come to a stop. then I was driving down I-75 doing 75mph on cruise control and the engine didnt die but lost power until I reach about 45mph then it kicked back in. after it did that i got back up to 75mph and had no problems. my idiot light came on once when I was driving for 5 seconds then went off again. Do you think the EGR could be the culprit? should I stop being a tight wad and spring the cash for it? whats code 13? Heeeeeellllllllllllllpppppppppp

[Hayden]

OK 13 is Oxygen sensor which is all probably going bad cause of the EGR. I guess I'll go buy one. Good thing my christmas shopping is done

[mudseeker]

code 13 is your o2 sensor, had to replace the one in my blazer about a month ago. there is no 23, and 34 is the map sensor.

[mudseeker]

wow, i must be a slow typer. your second post wasn't there a minute ago.

[Hayden]

Thanks anyways. and code 23 is Intake air temp sensor error (low temp indicated)

[mudseeker]

yeah, sorry. just read your link, my book doesn't have half those codes. why don't you let the thing die and buy my blazer? i have an ad in the classified section. i'll sell her for 2000 or best offer. runs like a champ just needs exhuast pipes welded up. income tax is coming up you know. hint hint.

[Chevy808]

Originally Posted by Hayden

This thing is killing me. I'm coming up with codes 13, 22, 23, 32, 34. don't know what 13 is yet but 22 is tps which I changed. 23 i believe is map which i havent touched yet. 32 is egr which i will change once i come up with the $205.00. 34 i believe is mat which i havent touched. I tried the seafoam in it and boy did it smoke after i started it back up after the 5 minutes. surprised fire dept didnt show up lol. The engine starts fine but will stall every now and then when I come to a stop. then I was driving down I-75 doing 75mph on cruise control and the engine didnt die but lost power until I reach about 45mph then it kicked back in. after it did that i got back up to 75mph and had no problems. my idiot light came on once when I was driving for 5 seconds then went off again. Do you think the EGR could be the culprit? should I stop being a tight wad and spring the cash for it? whats code 13? Heeeeeellllllllllllllpppppppppp

Some things doesn't throw codes. Like a bad coil, plugs or wires for example. Might want to give those none sensor parts a look at.

[Mre]

I would check output of your alternator for AC voltage,Might have a shorted or open diode diode causing more than one false code. Good Luck Mike

[Hayden]

This was my fathers old Blazer and the alternator is what I thought was the original problem on it. I took the blazer in to a shop and they found that the two fuel feed lines where bad and pouring gas into the intake and dripping into my oil. had them changed and they said they unstuck my egr so I dont know anymore. The output voltage was fine on the alt but who knows what happens when it gets hot from running for a while. Stupid electronics these days suck

[Hayden]

Is there a way to reset the codes on an OBD-1 vehicle. I heard something about turning the key on and off a few times but I dont know.