Lots of Codes!!

**Steven Monteith** · 02-11-2013

I have a 2000 GP with a top swap and xp cam. SES light came on and got it scanned. This is what came up:
P0108
P0128
P0137
P0327
P0332
P0442

Help me out guys. Thanks

Steven

**DirtDog** · 02-11-2013

Hey it helps us help u quicker if u go ahead and Google search each code and post what it is. There's only like 2...maybe just one person with the codes in memory...(billboost).

**Rob97gtp** · 02-12-2013

P0128 is t-stat is it not tuned? P0442 is evap leak

**Rob97gtp** · 02-12-2013

P0327 and p0332 is knock sensor codes

**Rob97gtp** · 02-12-2013

P0137 is o2 sensor code

**Fivefingerdeathpunch** · 02-12-2013

2 of those are knock sensor codes.

Another is a O2 code.

And a MAF code.

**Seachicken** · 02-12-2013

DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

DTC P0128 Engine Coolant Temperature (ECT) Below Thermostat Regulations Temperature

DTC P0137 HO2S Circuit Low Voltage Sensor 2

DTC P0327 Knock Sensor (KS) Circuit Bank 1

DTC P0332 Knock Sensor (KS) Circuit Bank 2

DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected

**Steven Monteith** · 02-12-2013

Thanks for posting all of those Seachicken. I was just about to do so. Any idea how to go about checking all of these? I know there are multiple things possibly going wrong to throw off each of these codes. Any common issues with these codes?

**Travisgt2** · 02-12-2013

i had a **** ton of codes thrown at me the other day it helps when you have all the wires and plugs plugged in lol

**Fivefingerdeathpunch** · 02-12-2013

Research each code, there will be some info on how to diag these problems.

**BillBoost37** · 02-12-2013

#1 Give us a bit of information. So far you said you top swapped. Nice, but when? What did you delete or leave on the car? Did you switch evap sensors etc? Did you have the pcm tuned for the swap etc? Who did the pcm?

See where this is going? I can hop on a forum and say my car won't start. That doesn't tell you that a ran the tank dry and killed the battery cranking it over. You are the guy who knows the car and what/when was done to it. We can't help you without you helping us first. PS, listing the codes and not bothering to look them up... big pet peeve of mine. I'm the kinda guy that teaches you how to fix it.

Look for things like common grounds or common power.

**Steven Monteith** · 02-12-2013

Sorry it was vague. I did the top swap with a gen3 about 2 months ago. I had it dyno/street tuned at a nice shop (Extreme Motorsports in tempe AZ). I have all the regular sensors that were on the GT. Big problem was the map sensor since it was from the GT, but they said they tuned around it some how and managed to get 8lbs of boost out of it. I have an xp cam, 42 lb injectors and all the other hard parts required for the xp. Ported heads as well. About a month ago I was throwing a code for a vac leak and a low temp of coolant. Changed thermostat and gas cap(which seemed messed up), coolant temp was fixed, light stayed on for about a week and turned off until last night. All sensors and lines are hooked up to my knowledge by following diagrams. I did bypass the boost bypass solenoid.

**BillBoost37** · 02-12-2013

Ahhh thank you.

I then see you saying, just recently all these codes popped at one time?

**Steven Monteith** · 02-12-2013

Yes all at once. SES light came on last night so I went straight to an autozone to get it scanned. Light turned off this morning while I was driving.
What is scaring me is the 2 knock sensor codes. I have an aeroforce to scan for that and I have 0 knock. Could these sensors be wrong and I'm actually having knock that it isn't picking up?

**BillBoost37** · 02-12-2013

See if you have the noise channel for 1 and 2 available. I forget if they are in the Aeroforce. If you see noise, then you should be able to scan for knock. However.. Look at the code it set. It's the circuit not the sensor or knock. Which isn't an easy one to set.

That leads me to wonder about the power/grounds. Hence my post suggestion.

**Steven Monteith** · 02-12-2013

Something else that throws me off is at the dyno shop I peaked at 8lbs of boost with 255whp. week or 2 later I hooked up the aeroforce and it was reading 3lbs of boost max. BUT I did not touch anything under the hood and did not notice any difference in power. Why could this be? At the shop it was tuned with a 3.4". After seeing 3lbs at home, I threw on a 3.2" and still 3lbs....??
sorry for throwing so much out there