3.4 Swaps The 3.4 V6 Toyota engine

Toyonly wiring harness, still no combustion..

Thread Tools
 
Search this Thread
 
Old 07-13-2011, 04:40 PM
  #1  
Registered User
Thread Starter
 
tacovr6's Avatar
 
Join Date: Apr 2011
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Toyonly wiring harness, still no combustion..

I am just about ready to give up on this 'project' as of tonight. I had a harness buily by toyonly, and have had to send it back once for what we thought was an injector wire in the wrong pin. Cliff and Justin are great guys, but I need more opinions on what is really going on.

i have spark, fuel to the rails, but no combustion. i CAN'T get this beyotch to fire!

Any ideas?
Old 07-13-2011, 05:20 PM
  #2  
Registered User
 
dntsdad's Avatar
 
Join Date: Jan 2009
Location: Fresno, Ca.
Posts: 1,908
Likes: 0
Received 5 Likes on 5 Posts
Usually maf issue with these symptoms.
Old 07-13-2011, 05:27 PM
  #3  
Registered User
Thread Starter
 
tacovr6's Avatar
 
Join Date: Apr 2011
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
clean the sensor, or check plug?
Old 07-13-2011, 05:52 PM
  #4  
totally a bro
Staff
iTrader: (2)
 
vital22re's Avatar
 
Join Date: Feb 2006
Location: kick yer face
Posts: 8,158
Received 45 Likes on 28 Posts
Check compression. Last guy I helped did the timing belt but was off a couple teeth. A weak compression pointed me to that. Have you checked for codes? How do you know you have spark ? Fuel in the rail doesn't mean you have fuel in the cylinders. After cranking for a bit pull the plugs and look at the condition.
Old 07-13-2011, 06:26 PM
  #5  
Registered User
Thread Starter
 
tacovr6's Avatar
 
Join Date: Apr 2011
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by vital22re
Check compression. Last guy I helped did the timing belt but was off a couple teeth. A weak compression pointed me to that. Have you checked for codes? How do you know you have spark ? Fuel in the rail doesn't mean you have fuel in the cylinders. After cranking for a bit pull the plugs and look at the condition.
timing is most likely off, I changed the belt, but didn't get it perfect. will it not start with the timing a few clicks off? It runs if i shoot gas into the plenum.

for some reason my obd2 port isn't working??? scanner isn't reading it...
i know its getting spark because i have tested with a extra plug.
I don't know that it is getting fuel to the cylinders, I will pull a plug to check.
thanks for the pointers.
Old 07-13-2011, 07:58 PM
  #6  
totally a bro
Staff
iTrader: (2)
 
vital22re's Avatar
 
Join Date: Feb 2006
Location: kick yer face
Posts: 8,158
Received 45 Likes on 28 Posts
If it runs when you spray it, chances are something with your maf isn't working and kicking on the fp through the COR. Try bypassing and hotwiring the fuel pump and see if it runs.
Old 07-13-2011, 08:02 PM
  #7  
Registered User
 
dntsdad's Avatar
 
Join Date: Jan 2009
Location: Fresno, Ca.
Posts: 1,908
Likes: 0
Received 5 Likes on 5 Posts
Originally Posted by vital22re
If it runs when you spray it, chances are something with your maf isn't working and kicking on the fp through the COR. Try bypassing and hotwiring the fuel pump and see if it runs.
I think he meant kicking OFF the FP.
Old 07-14-2011, 04:51 AM
  #8  
Registered User
Thread Starter
 
tacovr6's Avatar
 
Join Date: Apr 2011
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
should the fuel rail have pressure when I crack it open? I cracked it open and turned it over, no fuel is coming from the main line. I am going to try and bypass the COR and hotwire the fuel pump.

Last edited by tacovr6; 07-14-2011 at 05:26 AM.
Old 07-14-2011, 06:53 AM
  #9  
Registered User
Thread Starter
 
tacovr6's Avatar
 
Join Date: Apr 2011
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
hotwired the fuel pump and it runs like a champ! now what are my options? what do i need to do to fix this issue? use a 3.4 COR, or do I just have a bad 3.0 COR? lead me in the right direction knowledgeable ones.

So if I hotwired and it runs, what is my issue? I am kind of lost. Runs great, but holy hell is it loud!

Last edited by tacovr6; 07-14-2011 at 12:03 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RobotMoose
Diesel Swaps
8
08-02-2015 11:00 PM
TDonkey
93-98 T100s
0
07-26-2015 10:14 AM
toofly1999
86-95 Trucks & 4Runners
8
07-25-2015 07:09 PM
80Truck
Pre 84 Trucks
8
07-24-2015 03:12 PM
msane99
Pre 84 Trucks
4
07-17-2015 10:13 AM



Quick Reply: Toyonly wiring harness, still no combustion..



All times are GMT -8. The time now is 08:16 PM.