My B16 was running like shit
Icantgetno
08-13-2004, 08:56 AM
Until I read a letter in honda tuning mag about the O2 sensors.
I have a 91 CRX si and I recently put a B16 in it from Hmotors, It went in ok and ran like crap, anything below wide open it bogged down and just didnt have a good fuel mixture. I purchased the Hasport wire harness for it when I did the swap and wired it acording to the instructions and it was no trouble, the pins at the computer are easy to switch out and replace. No where did it explain how the O2 sensors differ.
This is the deal;
There is 1 O2 sensor in a 91 CRX si, there are 2 on a B16.
One of the 2 on the B16 has the same plug as the one on the harness of the CRX.
That plug on the CRX is not the same O2 sensor on the B16.
YOU MUST switch the 2 O2 sensor plugs (preferably at the computer) for the car to run propperly.
I am sure there are people reading this saying "everyone knows that" but I read 1000+ posts and spent 4 days focused on researching exactly how to do that swap prior swapping my new motor in and never came across it explained. I used the search engine and Google and 4 other forums and still could not find this information so I wanted to share it here.
I have a 91 CRX si and I recently put a B16 in it from Hmotors, It went in ok and ran like crap, anything below wide open it bogged down and just didnt have a good fuel mixture. I purchased the Hasport wire harness for it when I did the swap and wired it acording to the instructions and it was no trouble, the pins at the computer are easy to switch out and replace. No where did it explain how the O2 sensors differ.
This is the deal;
There is 1 O2 sensor in a 91 CRX si, there are 2 on a B16.
One of the 2 on the B16 has the same plug as the one on the harness of the CRX.
That plug on the CRX is not the same O2 sensor on the B16.
YOU MUST switch the 2 O2 sensor plugs (preferably at the computer) for the car to run propperly.
I am sure there are people reading this saying "everyone knows that" but I read 1000+ posts and spent 4 days focused on researching exactly how to do that swap prior swapping my new motor in and never came across it explained. I used the search engine and Google and 4 other forums and still could not find this information so I wanted to share it here.
CivicSpoon
08-13-2004, 12:36 PM
hmmm... my buddy did that swap for one of his friends and they've never been able to get it to run right. But let me make sure I get this right; you need to change the plug for the #1 O2 sensor (that's already on the crx harness) to a plug from the b16 harness? Or did I read that wrong? And then you have to add the second o2 sensor to C8 on the ecu or tap into the C16 one right?
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