LB7 with 40 engine codes

K

Kodiak440

New member
Oct 6, 2024
16
1
1
Mitchell, Oregon
Truck started running rough and blowing white smoke that reeked like diesel. Had the injectors changed and egr delete but the problem still persists. The engine light never came on but there are 40 engine codes on it. Previous owner had a Quadzilla Stealth 2 on it which i got rid of. Here is a list of all the codes, if someone could point me in a direction that would be great.
p0101, p0116, p0128, p0181, p0236, p0300, p0401, p0404, p0490, p0522, p0540, p0543, p0833, p1172, p1404, p1630, p1637, p1642, p1875, p2066, p2067, p2068, p2142, p2145, p2227, p2279, p2610, u1000, u1099, u1255, u1024, u1016, u1301, c0306, c0327, c0359, c0379, c0550, b0790, b2725
 
NC-smokinlmm

NC-smokinlmm

<<<Future tuna killer
May 29, 2011
5,200
362
83
At Da Beach
Like said above check the bale connectors and possibly the ecm connection. Also look at your grounds, if they are bad the truck will code like that.
 
R

Ron Nielson

Active member
Oct 11, 2009
765
144
43
Berryton, KS
You removed the Quadzilla Stealth 2 that presumably allowed you to operate with no EGR. Is that tune still in the truck? If not what tune is now in the truck?
 
dirtydmax

dirtydmax

<---up shit creek
Sep 1, 2013
1,091
4
38
46
muskoka,Ont Canada
If batteries were hooked up when bail connectors were separated to do injector job that's most likely where your codes came from.Truck's still running rough blowing smoke is prob a hard part failure but clear coded and re check.Ballance rates?
 
K

Kodiak440

New member
Oct 6, 2024
16
1
1
Mitchell, Oregon
dirtydmax said:
If batteries were hooked up when bail connectors were separated to do injector job that's most likely where your codes came from.Truck's still running rough blowing smoke is prob a hard part failure but clear coded and re check.Ballance rates?
Click to expand...
Cleared the codes but they came back, balance rates are within spec.
 
K

Kodiak440

New member
Oct 6, 2024
16
1
1
Mitchell, Oregon
dirtydmax said:
Any change with for unplugged?Check fpr pigtail
Click to expand...
I will check this
dirtydmax said:
Mine ran,fired right up as well but white smoke/ raw fuel and and ran like shit as well once i started driving.We're you into valve train at all?
Click to expand...
Never got into valve train or timing, it just randomly did this when going down the highway. Took it to a shop and they told me injectors. Then it sat in the shop for 6 months because they couldn't figure it out after the new injectors didn't fix it.
 
dirtydmax

dirtydmax

<---up shit creek
Sep 1, 2013
1,091
4
38
46
muskoka,Ont Canada
Kodiak440 said:
I will check this

Never got into valve train or timing, it just randomly did this when going down the highway. Took it to a shop and they told me injectors. Then it sat in the shop for 6 months because they couldn't figure it out after the new injectors didn't fix it.
Click to expand...
They couldn't figure it out in 6 months?Did you use genuine Bosch remains or a set from a less reputable vendor?
 
K

Kodiak440

New member
Oct 6, 2024
16
1
1
Mitchell, Oregon
dirtydmax said:
Just out of curiosity did you check for blow by?Any chance you have pushed in pins in bail connectors?Strange symptoms for sure
Click to expand...
I'll check the bail connectors, truck has no blow by. Could the ecu or ecm be goin out? Seems to not be able to communicate with any of the other modules. Now it says service 4wd, seems everything is failing.
 
TheBac

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,611
1,868
113
Mid Michigan
Sounds like a canbus or grounding issue to me.

How did you "delete" the EGR? Did you use the old-school fingerstick and blocker plate? Or was the stock tuning changed to reflect it?
 
You must log in or register to reply here.
Top Bottom