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genV swap + codes.... oh boy

gtpsleeper

gtpsleeper

New member
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.

235_1.jpg


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.
 
gtpsleeper said:
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...
Click to expand...

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.
 
bluegtp91 said:
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.
Click to expand...

^ This.

Let the vac leak search begin! Woo hoo

Sorry,i've been there before and I sucked. Gl bro :)
 
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.
 


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