Finally started the LB7 to LBZ swap
- Thread starter Car RamRod
- Start date
hey i just did this, mine is all done but i cant get it to start. it just cranks and it popped off once for a split second. heres the list of codes i pulled.
heres the codes i pulled: 13 of them
1. P0381 Glow Plug/Heater Indicator Malfunction
2. P0650 MIL Control Circuit Malfunction
3. P0113 IAT Sensor/Circuit High Input
4. P0102 MAF or VAF A Circuit Low Input
5. P0101 MAF or VAF A CKT Range/Perf
6. P0676 Glow Plug/Heater Cylinder 6
7. P0181 Fuel Temp Sensor A CKT Range/Perf
8. P0381 Glow Plug/Heater Indicator Circuit Malfunction
9. P0650 MIL Control Circuit Malfunction
10. P0128 Coolant Temp Below Thermostat
11. P0102 MAF or VAF A Circuit Low Input
12. P0101 MAF or VAF A CKT Range/Perf
13. P0676 Glow Plug/Heater Cylinder 6
I know some are repeats but thats what the reader said. here is the wiring that i did in my truck to perform the swap. i have the 2003 truck. in the C2 block i moved the 2 orange wires in F4 to position A8. moved onto c100 female plug. moved bodyside C to N, moved M to R, moved G to J. added a wire to B for the 6 speed tap. also added the wires to F and G for the OBD port. anyone have any other help that can get this motor started here??? thanks guys
heres the codes i pulled: 13 of them
1. P0381 Glow Plug/Heater Indicator Malfunction
2. P0650 MIL Control Circuit Malfunction
3. P0113 IAT Sensor/Circuit High Input
4. P0102 MAF or VAF A Circuit Low Input
5. P0101 MAF or VAF A CKT Range/Perf
6. P0676 Glow Plug/Heater Cylinder 6
7. P0181 Fuel Temp Sensor A CKT Range/Perf
8. P0381 Glow Plug/Heater Indicator Circuit Malfunction
9. P0650 MIL Control Circuit Malfunction
10. P0128 Coolant Temp Below Thermostat
11. P0102 MAF or VAF A Circuit Low Input
12. P0101 MAF or VAF A CKT Range/Perf
13. P0676 Glow Plug/Heater Cylinder 6
I know some are repeats but thats what the reader said. here is the wiring that i did in my truck to perform the swap. i have the 2003 truck. in the C2 block i moved the 2 orange wires in F4 to position A8. moved onto c100 female plug. moved bodyside C to N, moved M to R, moved G to J. added a wire to B for the 6 speed tap. also added the wires to F and G for the OBD port. anyone have any other help that can get this motor started here??? thanks guys
hey i just did this, mine is all done but i cant get it to start. it just cranks and it popped off once for a split second. heres the list of codes i pulled.
heres the codes i pulled: 13 of them
1. P0381 Glow Plug/Heater Indicator Malfunction
2. P0650 MIL Control Circuit Malfunction
3. P0113 IAT Sensor/Circuit High Input
4. P0102 MAF or VAF A Circuit Low Input
5. P0101 MAF or VAF A CKT Range/Perf
6. P0676 Glow Plug/Heater Cylinder 6
7. P0181 Fuel Temp Sensor A CKT Range/Perf
8. P0381 Glow Plug/Heater Indicator Circuit Malfunction
9. P0650 MIL Control Circuit Malfunction
10. P0128 Coolant Temp Below Thermostat
11. P0102 MAF or VAF A Circuit Low Input
12. P0101 MAF or VAF A CKT Range/Perf
13. P0676 Glow Plug/Heater Cylinder 6
I know some are repeats but thats what the reader said. here is the wiring that i did in my truck to perform the swap. i have the 2003 truck. in the C2 block i moved the 2 orange wires in F4 to position A8. moved onto c100 female plug. moved bodyside C to N, moved M to R, moved G to J. added a wire to B for the 6 speed tap. also added the wires to F and G for the OBD port. anyone have any other help that can get this motor started here??? thanks guys
There are a couple of different sources for codes, so I doubt one thing is causing them all. Did you clear the codes before you tried to start it?
The MAF/IAT1 wiring goes directly from the ECM to the MAF, so you could have a bad MAF or bad wiring. Are the LB7 MAF's the same as the LLY/LBZ MAF? P0381 & P0650 coulf be due to a miswire or bad connection at C100. P0128 is ususally only set when it takes too long for the motor to get up to temp, usually indicating a thermostat that's stuck open.
Did you happen to do a VATs relearn or disable VATs in the ECM? If not, that would cause something very similar to what you described. It'll fire for a fraction of a second, die, then only crank.
If you did not do a VAT relearn, here's the procedure (copied from one of Kat's posts):
If you have EFILive, you can also change G0301 to "disable".
yes i tried the vat relearn. my batterys are dead now so i am not sure. what wires were all needed to move? i moved F4 to A8 in the C2 plug. C100 i moved bodyside females C to N, M to R, G to J, added a wire in B for tapshift, added a wire in G and F up to the OBD port. am i missing something?
i got the swap done and the wiring issue with all the codes i had figured out. now its down to just glow plug 6. so im thinking its a glow plug issue. gotta hook up the tapshifter and then its done done. this motor is so quiet compared to that lb7!!
Bad glow plug wouldn't cause a no-start. Still smells like VATs. Did you try disabling security in the tune?
Attached are my notes on C100... Had to reconstruct them from the schematics since I couldn't find my notes from last year
Edit: Fixed omission in doc
Can one swap an LBZ into an 01 with a ZF6? I'm ready to put a fresh motor in and an LBZ would sure be nice to have so I can avoid more inejctors.
Anyone ever do a full write up?
Did any of you guys who have performed this swap (LB7 -> LBZ) do a full write up? I have had it with injector changes. Looking for my donor truck now, and I want to gather up all of the necessary pieces. A write up with pics would be an amazing help.
Did any of you guys who have performed this swap (LB7 -> LBZ) do a full write up? I have had it with injector changes. Looking for my donor truck now, and I want to gather up all of the necessary pieces. A write up with pics would be an amazing help.
You're more than welcome to pm me about it. I have 3 swaps under my belt now and helped grey though his. Not hard at all really. Just plan for your truck to be down for a few weeks for part gathering ect. Actually transplant takes 2-3days.
You have to use the new style (2-potentiometer) plastic one. The LBZ ECM isnt compatible with the older style (3-pot) metal accelerator pedal.
i know its been a while since anyone has posted on here. im new to the site and the reason i joined is because i want to drop a lbz into my 02 and i know there have been a lot of people saying its not possible at all then some people saying it is. I'm hoping someone can point me in the right direction. im looking to get a complete donor truck that has been wrecked that i can use all the wiring from and maybe even the motor and trans if its low enough miles. any info on the subject would be great!!
