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View Full Version : Civic EG B16A4 dilemma


vyrus
21-04-2011, 02:32 AM
Hey guys hope you're all doing good.
I have a little problem. Swapped a B16A4 OBD 2 and the ECU is P2t into my Civic EG SEDAN recently. Retained my original D16 wiring harness since I got none with my b16 ><.
Anyways, I have a MAP sensor missing aswell as INTAKE sensor that plugs into the intake pipe. Also getting a CEL code for Knock sensor. I'm currently getting Code 3, Code 23 and another one for intake sensor missing. Anyway, the problem is that the car is running like absolute shit, stalls alot, idles low as **** and I don't even feel the vtec kicking in. ALso running very rich. I also noticed some oil getting into cylinder 1 plug.
Another thing is that the car gets even worse after a bit of harsh driving around the city, temperature gauge stays on normal temps but the engine is REALLY REALLY hot even after several hours after being parked. Or maybe thats just me feeling paranoid.
Anyways i'm getting MAP sensor and Intake sensor tomorrow, so that I can resolve these issues for the time being. Knock sensor I can't find at the moment where i'm at ><.
Guys any help will be greatly appreciated!

Few pics:
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0338.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0339.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0341.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0342.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0343.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0344.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0345.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0346.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0348.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0350.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0349.jpg
http://i943.photobucket.com/albums/ad275/fartman101/Civic%20Prob/IMAG0351.jpg
vyrus
22-04-2011, 08:41 PM
No one ? :(
dorikin
22-04-2011, 09:58 PM
What help do you need? It sounds like you already have the answers.

Code 3 MAP sensor

Code 23 Knock Sensor

IAT sensor (Code 10)

Resolve these fault codes and you will be on your way to getting your car running properly.
vyrus
23-04-2011, 02:04 AM
Great so I get a new MAP sensor today, a new knock sensor aswell as the IAT sensor. Now i find out that I ALREADY had a map sensor installed on the TB :S i mean, wtf ?
Theres a hose coming out from the back of the Manifold to which I thought i had to install the MAP sensor to.
Now what ? I've got 2 different places for MAP sensors. I'm officially stumped!
vyrus
23-04-2011, 02:09 AM
Great so I get a new MAP sensor today, a new knock sensor aswell as the IAT sensor. Now i find out that I ALREADY had a map sensor installed on the TB :S i mean, wtf ?
Theres a hose coming out from the back of the Manifold to which I thought i had to install the MAP sensor to.
Now what ? I've got 2 different places for MAP sensors. I'm officially stumped!
TheSaint
23-04-2011, 02:04 PM
did the car get converted to obd2?
which engine is in there and which ecu is in there? (which B16 and what stamp on ECU?)
what year is the engine and which year is the car
what was the original engine? (which D16?)
auto or manual?
what mods?

need more info man ...
vyrus
23-04-2011, 06:38 PM
Dude at least read my first post :s
Benson
23-04-2011, 06:45 PM
Obviously there is something wrong with either the wiring harness or the sensor itself. The easiest is the change over the sensor and see if the code goes away. If it doesn't, then you got some wiring issue. When using the D-series loom, you'll need to add wires and rewire a few things to get it working
TheSaint
23-04-2011, 07:36 PM
Dude at least read my first post :s

i did read your first post and NONE of the questions i asked where answered there - the only thing that is stated clearly that you have is a "B16A4 OBD 2 P2t ECU" whatever that is

help us by helping yourself - either edit your first post, provide more info, or i will remove the thread
vyrus
23-04-2011, 07:43 PM
Is the wiring for all D series VTEC the same? As in, JDM D15b vtec and a D16 vtec ?
vyrus
23-04-2011, 07:45 PM
i did read your first post and NONE of the questions i asked where answered there - the only thing that is stated clearly that you have is a "B16A4 OBD 2 P2t ECU" whatever that is

help us by helping yourself - either edit your first post, provide more info, or i will remove the thread
B16a4 is obviously the engine code
OBD2 is the type
P2t is the ecu
TheSaint
23-04-2011, 07:55 PM
the ecu is from P2T : 99+ OBD-? Civic Si Coupe - which is USDM
and the engine is from the JDM 96-99 SiR Hatch - only the manual version

the car was originally what model? being an EG it would have been OBD-1
so what harness are you trying to use?

so the car has been converted to OBD2?
what year is the engine? what year is the car?
what was the code for the original engine?

and no they arnt all the same

either start providing info or i will delete this thread because its useless
vyrus
24-04-2011, 06:10 AM
Car originally came with D15b vtec which is obd1.
Car currently has D16 wiring harness converted to OBD2 (im not sure if its even done right).
TheSaint
24-04-2011, 11:39 AM
ok so the civic is an import

far out that is one hell of a combination u have there

JDM car with D16 wiring harness running a JDM B16 variant with a modern USDM ECU

not suprised that you are having conflicts
vyrus
24-04-2011, 06:18 PM
^ Tell me about it :(
I can revert back to the OBD1 D15 vtec wiring harness and the original P08 ecu. Would you advise me converting the b16 to OBD1 ?
And what exactly will I need to change besides the wiring and ecu ?
TheSaint
25-04-2011, 01:01 AM
it depends on whats in the car already - if most of it is OBD1 i would convert - but if the majority of parts you have is OBD2 i would go that

OBD2 is better and easier for tuning - and i would recommend staying with whatever the engine comes with

do you still have the vtec d15?
TheSaint
25-04-2011, 01:01 AM
it depends on whats in the car already - if most of it is OBD1 i would convert - but if the majority of parts you have is OBD2 i would go that

OBD2 is better and easier for tuning - and i would recommend staying with whatever the engine comes with

do you still have the vtec d15?
vyrus
25-04-2011, 01:14 AM
Yes I still have the vtec d15. OBD2 is better for tuning ? I thought it was the other way around :S
TheSaint
25-04-2011, 01:40 AM
how much for the D15? or just the head?
pm sent
Benson
25-04-2011, 10:10 AM
Sounds like you got some wiring issue. Its best to get someone who knows what they are doing with wiring to have a look at it. What area are you from?