------' SWAP PROBS!
05-26-2004, 05:54 PM
#23
1.5 BAR
Join Date: Jul 2003
Posts: 828
Re:------' SWAP PROBS!
HF and Si harness is the same thing (just added some plugs for EGR and stuff)
On my first swap I had the same problem, and spent 4 days tearing everything apart. Turns out the ECU ground on the thermostat housing wasnt grounding right due to some corosion and me not tightening the wire down properly...
Check to make sure your ECU is powering up and going into its initial diagnosis mode when turned on (check engine comes on for a sec or two when key in the iginition reaches on position)
On my first swap I had the same problem, and spent 4 days tearing everything apart. Turns out the ECU ground on the thermostat housing wasnt grounding right due to some corosion and me not tightening the wire down properly...
Check to make sure your ECU is powering up and going into its initial diagnosis mode when turned on (check engine comes on for a sec or two when key in the iginition reaches on position)
05-26-2004, 06:05 PM
#24
Administrator
Join Date: Dec 2002
Posts: 13,991
Re:------' SWAP PROBS!
Originally Posted by SpeedyJAY
HF and Si harness is the same thing (just added some plugs for EGR and stuff)
So reguardless if they are both MPFI, the pins are in different locations. IF I were you I'd swap the HF harness back on if ya still got it. Because you may run into other problems.
Jeff
05-26-2004, 06:10 PM
#25
1.5 BAR
Join Date: Jul 2003
Posts: 828
Re:------' SWAP PROBS!
Wellll Excuuuuuse me 
I mis-read thought that he had only had an hf harness, not an si in an hf.....in that case get rid of the si harness its messing you up
When I said they were the same I meant that they accomplish the same thing and you dont need to be removing it. Hf has a bunch wierd stuff added in for EGR crap and such...
^^^
Do what he said
I mis-read thought that he had only had an hf harness, not an si in an hf.....in that case get rid of the si harness its messing you up
When I said they were the same I meant that they accomplish the same thing and you dont need to be removing it. Hf has a bunch wierd stuff added in for EGR crap and such...
^^^
Do what he said
05-26-2004, 07:31 PM
#26
0.0 BAR
Join Date: Dec 2002
Posts: 0
Re:------' SWAP PROBS!
Thank you jeff I keep telling people hf/si harness is different not a soul wants to believe me. Did the same thing and came up with 2 or 3 codes I believe. Check your grounds check your grounds and if you give up on it I'll buy the car.
05-26-2004, 09:42 PM
#28
0.0 BAR
Join Date: May 2004
Posts: 35
Re:------' SWAP PROBS!
the only difference in the hf and si harnesses that i know about is the ignitor wire, the si has it on the pass shock tower, the hf is on the drivers, you need to run the white wire from the ignitor at the dizzy to the drivers shock tower, i have a 89 hf and am using a si harness. heh i couldnt belive i had to figure this out for my self like a year and a half ago. thank god for pinouts
hope this helps
-joseph
hope this helps
-joseph
