Thread: genV swap + codes.... oh boy

just put my genV on to my genIII IC setup... noticed my rev is high and iac reading 185.... did some driving testing it out a little and cruising is normal but went WOT a couple times and noticed only 4psi of boost and threw these codes on the last one...

P0122
P0243
P0300
P1120

I know what the codes are but not how to fix them...

I went from a genIII with a N* to genV with LS1...

im thinkin maybe i didn get that ***** sealed good enough :/ but i dont get what would make everything else be weird...idk...ideas?

Aiiight.

For those that don't feel like searching...

P0122: Throttle Position Sensor Circuit Low Voltage
P0300: Random Misfire
P0243: Supercharger Solenoid Fault

As for the P1120...I didn't find anything...or maybe I'm blind. I found a P0120...which is another TPS code.

For the P0300...I'm guessing vac leak there...causing the misfire.

Are you using the sensors for the LS1 TB? I haven't looked to see if they are the same on your N* as well...I'm betting vacuum leak...I'm still also betting that there is something up with the GenIII IC Core to the GenV IC core...or the LIM.



I know Brian ported it way back when at the same time you did the ported blower...but I don't think he knew you were planning on a intercooled GenV down the road.

As for the BBV...swap the solenoids if they are the same, which I gather they are...see if the GenV one might have been bad. For the TPS, try cleaning it? For the record...how did you seal the LS1...to the blower/adapter plate? RTV? I had some nasty vacuum leaks on mine because I didn't let the RTV sit long enough on it.

Originally Posted by bluegtp91

Aiiight.

For those that don't feel like searching...

i DID search lol i know what they are i just dunno where to start to fix everything... the more i read the more im thinkin i didn seal that SC good enough...

Originally Posted by gtpsleeper

i DID search lol i know what they are i just dunno where to start to fix everything... the more i read the more im thinkin i didn seal that SC good enough...

Fool...I know you did, I'm talking about for the lazys that come in later that are sitting there going...huh, I wonder what that code is.

Got a can of brake clean?

Spray around the blower with it.

Yeah GTP.. he was listing them for guys like me who are helpful, but sick and tired of everyone listing just the code number. by listing the description I can help you much quicker. Plus..I'm really tired of having to look up the codes that people list w/o a name to know what they are.

Looks to me like you need to check the power coming in for those two items. The power is likely shared in a splice right before one. When you put the new parts on maybe the splice in the harness broke. The items should be actuated/feeding back on the ground wire to the pcm.

if i unplug the sensors and nothing changes does that mean its not the sensors or harness?

no because the sensors could still be ****ed up. the code is still there.