[schwindty]

Hey everyone I broke down today and pulled some codes from my system to figure out what the hell is going on with my car I was getting way to frusterated with trail and error tuning. The codes broke down liek this:

Key On Engine Off:
34-C
24-O
21-O
10
11-O

Key on Engine On

Says 8 Cyl
13-A
12-A
21-A
22-A
41-A
91-A
33-A
13-A

Ok there we have it thats all the codes I got today, I had to come in it was getting dark out and I am fixing my sea doo in my garage soo I couldt run it in there. I bought new plugs, fuel filter, plug wires, and I have to get my 02 sensors done ASAP I know they have problems with them. What I am trying to ask is how are these codes making my car gutless and idle liek ****.

[89stanger]

Originally Posted by schwindty

Hey everyone I broke down today and pulled some codes from my system to figure out what the hell is going on with my car I was getting way to frusterated with trail and error tuning. The codes broke down liek this:

Key On Engine Off:
34-C
24-O
21-O
10
11-O

Key on Engine On

Says 8 Cyl
13-A
12-A
21-A
22-A
41-A
91-A
33-A
13-A

Ok there we have it thats all the codes I got today, I had to come in it was getting dark out and I am fixing my sea doo in my garage soo I couldt run it in there. I bought new plugs, fuel filter, plug wires, and I have to get my 02 sensors done ASAP I know they have problems with them. What I am trying to ask is how are these codes making my car gutless and idle liek ****.

your codes mean....
34 o,r,c, insuffucent EGR flow or EVP voltage high (SONIC) or PFE sensor voltage high or out of spesification
24 o,r, intake air charger tempature (ACT, IAT) sensor or Vane Air Tempature (VAT) sensor out of range
21 o,r,cooling tempature sensorout of specified range or ECT out of range (yes cooling not coolant)
10... no such code
11 0,r,c, system ok

13 r, rpm at idle out of range/low
12 r, rpm at idle out of range/high
21 o,r, cooling tempature sensor out of specified range or ECT out of range
22 o,r,c, manifold absolute presure (MAP) or BARO sensor out of range
41 r, HEGO (HO2S)sensor voltage low/system lean
91 r, (cars only) HEGO (HO2S) sensor signal out of range/ system lean
33 r,c, (cars only) EGR valve not opening properly
13 r, rpm at idle out of range/low

if i am not mistake, code 41 is just the drivers side o2 sensor, and 91 is just the passenger side

also if you have any questions about what anything in this means, like hego let me know, i just learned that the book i got these code definitions out of also has an abbreviation key, hego is heated oxygen sensor (or it's circiut)

[meangreen92]

The 10 was the separator pulse, and the 11 meant no codes stored in the
Continuous Memory.
I'd take a good look at the wiring of the engine harness and all connectors
and grounds. The Key On Engine Off codes indicate a wiring problem imho.
Probably just a ground if you're lucky.
I would also inspect ALL vacuum lines, especially the MAP and EGR circuits.
I'd probably put off installing the new O2s until the major malfunction is
corrected, or at least until there are no more KOEOs.

[schwindty]

Yeah I am almost sure I do not have a wire off I wouldnt know where to start looking for one of them. Plus my Map sensor is brand new along with all the vacums lines leading to it soo I have some carb cleaner I will spray around there. Another question I have is or will the ground from the injector harness ground to aluminium heads or is it better to run it to the chasis? I am not sure how conductive Alum is compared to metal. I am going to take out my EGR and be done iwth it

[meangreen92]

Yeah, I think aluminum is not quite as good as iron for conducting. I would
try to relocate it to the block rather than the chassis.

[schwindty]

Ok I was fixing again and now I am at the point where I am totally screwed and don't kow where to go I now have it down to a few codes:

Key On engine Running

12-R RPM Idle High
42-R O2 Sensor Rich- I think I have to change my 24lb to 19
92-R Sytems rich at 02
33-R EGR Valve not opening properly- I think I am going to fabricate a plate for my TB to go where the EGR was suposta be and then leave the sensor part of the EGR still attached. Will this work?

Key On Engine OFF

WHAT THE HELL ARE THESE?

51 C ECTsensor out of range/circut open
31 C EVP or PFE circut below minimium voltage
31 C EGR Valve control sensor fault ( Yeah same code 2 different meanings??)

Ok there we have it thats what i have fixed soo far and now I am at a piont in which I am lost and have no idea on what to do next with it to get it running half ass good and to idle. Thanks once again in advance.

Schwindt

[89stanger]

Originally Posted by schwindty

Ok I was fixing again and now I am at the point where I am totally screwed and don't kow where to go I now have it down to a few codes:

Key On engine Running

12-R RPM Idle High
42-R O2 Sensor Rich- I think I have to change my 24lb to 19
92-R Sytems rich at 02
33-R EGR Valve not opening properly- I think I am going to fabricate a plate for my TB to go where the EGR was suposta be and then leave the sensor part of the EGR still attached. Will this work?

Key On Engine OFF

WHAT THE HELL ARE THESE?

51 C ECTsensor out of range/circut open
31 C EVP or PFE circut below minimium voltage
31 C EGR Valve control sensor fault ( Yeah same code 2 different meanings??)

Ok there we have it thats what i have fixed soo far and now I am at a piont in which I am lost and have no idea on what to do next with it to get it running half ass good and to idle. Thanks once again in advance.

Schwindt

ect=engine coolant tempaturesensor or circut
basicly, the electronic sensor that is in your intake for water tempature, should be front drivers side, right on the corner, a little connector, wire should be black i think, like a 14 or 16 gauge wire
evp=egr valve positionsensor or it's circut
pfe=pressure feedback EGR sensor or it's circut
egr=exhaust gas recirculation, system is designed to allow flow of inert exhaustgases into combution chamber to cool combustion and reduce nitrous oxides in exhaust

basicly the only thing that is abnormal on your car here is the ect code, the egr removal will trip the rest of the codes something i have been told not to worry about it when i was first asking about it, then someone asked me if i had my egr removed, which i don't, not yet

[GhostDog 5.0]

Originally Posted by 89stanger

ect=engine coolant tempaturesensor or circut
basicly, the electronic sensor that is in your intake for water tempature, should be front drivers side, right on the corner, a little connector, wire should be black i think, like a 14 or 16 gauge wire


basicly the only thing that is abnormal on your car here is the ect code, the egr removal will trip the rest of the codes something i have been told not to worry about it when i was first asking about it, then someone asked me if i had my egr removed, which i don't, not yet

The engine coolant temperature sensor is not in the drivers side part of the lower intake. It's in the heater core rail on the passenger side.

The one 89stanger described is coolant temperature sending unit for the temperature gauge in the dash. The computer doesnt get any input from that. Same goes for the oil pressure sending unit.

[schwindty]

Understood thanks for the info guys I have just bought and installed a new Coolant sensor today and I still get the same codes being pulled out for some reason and its kinda pissin me off. But yeah I think the EGR elim will solve alot of problems, as well if I run my stock injectors other than my 24lb I shouldnt need a custom chip burn, well I will still need one but can I get away with it for a lil while? Thanks Guys you have no idea how appreciative I am, I am getting real stressed about the whole thing

[meangreen92]

Definitly put your 19#ers back in. In the meantime, you might try backing
your fuel pressure way down to say, 30psi with the vac. line pulled.
The 12 will probably be cleared up when another problem is rectified.
You can fab up a blockoff plate (gasket w/no holes) to put between the
EGR valve and the EGR spacer.
The 31 is probably the EGR valve position sensor. The fact that the new
ECT sensor didn't clear the code is further evidence of a wiring fault. That
it is in concert with the 51 makes me think of a ground, I think it connects
to the rear of the intake (upper). There was another thread, about 4 or
so months back in which someone had similar faults, and one of the
suggestions was that ground.
Check for 12 V+ at the orange wire(s) that go to the ECT and EVP. The
black wire should ground the circuit.

[89stanger]

and this post has gone outside of my knoledge, OH HEY! i know where that coolant temp thing is, it's on the black tube on the passenger side of the lower intake isn't it?

[lxarlo]

dude i was at this point a few months back with my ranger. 86 2.9 V6 EEC iv
i had similar codes like the ect or expected code, high idle, the o2 sensor code running lean.
it started up normal then after a few seconds then it would want to die, and if i revved it up, it would clear out but after shooting black smoke everywhere. i would rev and the motor would shake violently rocking the whole truck i was at my wits end with this and i thought i had done everything, i replaced the ect, cleaned the iat, had just replaced the fuel pump(needed it anyway it was burned out) and was just sooo pissed, but it turned out to be a bad throttle position sensor. i snaked one off a junkyard truck and after that it ran smooth as glass. i was soo happy. could be the same thing, but i hope it works out for you
good luck.

[schwindty]

Awesome thanks for the advice thats what my car is doing as well!! I am going to change the wire harness being as I had a little fire today on my car and change the TPS and the EGR and the Dizzy if that don't fix things I am going to light it back on fire the ******* thing

[privatejoker]

I pulled a bunch of codes on mine - egr position, tps, map, ect. I have not cured the problem yet. I tried a new ecm, ecm wiring harness, tps, and ect. No luck. I do know one thing, eliminating your egr will not help, it will most likely continue to give you a cel, even if you fix the other codes. The O2 codes could be related to the others, ignore them until after the others have been cured. I have continuity from my ecm wiring harness computer plug in, through the ten pin connectors, all the way to the sensor pigtails. I stumbled on to one interesting fact. Ect, tps, map, maybe some others all use the same signal return wire, which means if one goes, it could set codes for all of them. Let us know what you figure out.

[schwindty]

Well I burned my other wire harness by mistake soo I bought a new one and I am about to hook it up tonight but I am waiting on my EGR plate and custom chip before I start the bad boy up again, I am going to make sure this bugger is running awesome before I start to mess around with it again. Soo once I get the chip and it all together I will post some numbers of my combo...Thanks Guys