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Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Hi all!
I have tried to search for answers to this but not really finding what I need. I'm sure it's out there already, I'm just not finding it. Like the title says, I have a 97 Civic with a B18C1 swap. The car will not idle after it is warmed up. It appears to be running rich (smells rich). I can open a vacuum port (pull off a line) and it will idle. When I do get it to idle by pulling off a vacuum line, it wants to bog down when I give it gas and takes a few seconds to catch up. I'm leaning towards the Coolent Temp sensor, but just not sure. I really don't want to just start throwing money at it and replacing things! Is there a way to test the Coolent Temp sensor? Voltage? Thanks for any suggestions! |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
New swap? Or old swap that was running fine and problem popped up out of nowhere?
CEL codes? |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Old swap (before I bought the car).
No CEL... I have not hooked my puter up to see if there are any codes that did not trip the light. Thanks! |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Originally Posted by thewizz
(Post 50579644)
Old swap (before I bought the car).
Originally Posted by RonJ
(Post 50579569)
Or old swap that was running fine and problem popped up out of nowhere?
No CEL... I have not hooked my puter up to see if there are any codes that did not trip the light. |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Originally Posted by RonJ
(Post 50579655)
How long have you owned the car?
Originally Posted by RonJ
(Post 50579655)
What ECU? Does CEL work?
Good question and I must say, I don't know to both... How can I find out what ECU is in it? |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
1) Remove passenger kick panel and post picture of label on ECU.
2) Turn key from OFF to ON(II). Does CEL illuminate for 2 seconds and then turn off? |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Originally Posted by RonJ
(Post 50579668)
1) Remove passenger kick panel and post picture of label on ECU.
https://cimg6.ibsrv.net/gimg/honda-t...d2c58abef6.jpg https://cimg7.ibsrv.net/gimg/honda-t...2a346a61e8.jpg Looks like the wiring is an after market add on.
Originally Posted by RonJ
(Post 50579668)
2) Turn key from OFF to ON(II). Does CEL illuminate for 2 seconds and then turn off?
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Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Are you saying the CEL never turns on?
The scanner won't read an OBD1 ECU, if your P72 ECU is OBD1. And the label on the ECU suggests that it is OBD1. Information :: Tech Area :: Stock Honda ECU List |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Yes, the light never came on.
I am a little confused why they would have used an older ECU. The engine and car both are '97's. Any suggestions as to why they would have done that? |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Originally Posted by thewizz
(Post 50579798)
Yes, the light never came on.
I am a little confused why they would have used an older ECU. The engine and car both are '97's. Any suggestions as to why they would have done that? If you live in a state with strict emissions laws, your car won't pass inspection. |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Yep, definitely a OBD1 ECU... Was just looking at the sticky on wiring swaps and the connectors shown in the pics for an OBD1 match mine.
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Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
OK...
There was no bulb in the CEL. So, Reading elsewhere I found that you jumper 2 wires above the ECU to get the codes. What I read said they should have been a black/white and a red/black but mine were black/wht and tan/gry. Is that correct? I did jumper those and got no codes. |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Originally Posted by thewizz
(Post 50579979)
OK...
There was no bulb in the CEL. So, Reading elsewhere I found that you jumper 2 wires above the ECU to get the codes. What I read said they should have been a black/white and a red/black but mine were black/wht and tan/gry. Is that correct? I did jumper those and got no codes. https://honda-tech.com/honda-civic-d...lists-1901557/ |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
1 Attachment(s)
I have tried to attach a movie of the flashing sequence. I am a little confused by it. I am not sure if it is all one code or 2 codes?
Funny thing happened though... As I was trying to get the codes, I started the car with the connector jumpered. When I did that the car started to idle great and continued to do so. I still have the CEL though... Have a look and see what you think its telling me the code is. |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Codes 10 and 41.
Are the IAT sensor and primary O2 sensor plugged in? Reset the ECU and drive car to see whether codes return. |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
OK, makes sense now that I know how to read it. Thanks!
Yeah, everything is plugged in. I will reset and give it a spin. |
Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
Do only those two codes repeat if the video were to run longer?
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Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
yes, just keeps repeating that sequence.
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Re: Newbie to Honda - Stalling issue on 97 Civic w/ B18C1 Swap
okay
Reset and go from there. |
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