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intheearlyhours · 10-07-2009, 05:27 PM

Ok please read all of this before you post reply.

Ok i have a 1991 Honda Civic (not CRX) Jdm Z/C DOHC. My problem is that when i have the number 1 cylinder plugged in as i should it backfires through what sounds like the exhaust manifold. I have replaced the Dizzy about 6 months ago i have new plugs and wires, i checked the timing 3 times (ITS RIGHT). Someone once told me it could be a number 1 cylinder sensor or something, but than someone else said that they NEVER go bad. When i unplug the injector or just pull the wire from the number 1 cylinder it does not backfire just runs slow. and heres the thing. If i run it on 3 cylinders for about 2 days and than plug the number 1 back in it wont backfire for about 2 hours of driving. Please Please Please help me im so sick of this car right now.

Hit me up on my email also brandonniblock@yahoo.com or my AIM- mrbangbangsir

p.s. this is not a new swap i have been driving it for about a year or longer

jlicrx · 10-07-2009, 06:39 PM

did this problem start when you changed plugs and wires? what kind of plugs and wires do you have? anything other than NGK plugs and OEM wires will cause problems

intheearlyhours · 10-07-2009, 06:58 PM

i changed the plugs and wires thinking it would fix the problem. So its not the plugs

jlicrx · 10-07-2009, 07:12 PM

have you checked the fuel injector on the number 1 cylinder? unplug the connector - set the ohm meter to the lowest setting (200?) - measure resistance between the 2 terminals on the injector itself - should be 1.5 to 2.5 ohms - if not, the injector is bad

intheearlyhours · 10-07-2009, 07:16 PM

Ok i did it with the car off and it did nothing and with the car on i got anywhere from 2.0 up tp 4.0 on the setting of 200OHMs

intheearlyhours · 10-07-2009, 07:35 PM

Wait when you say the injector itself do you mean the plug that i pull out of it or something else??? i tested the plug

INJEN78 · 10-07-2009, 07:50 PM

you test power coming from the plug..and it sounds to me like your is F-ed up.
dumping too much fuel into cylinder 1...

intheearlyhours · 10-07-2009, 07:58 PM

Ok can you guys do me a favor and find how to check the injector from like amanual

jlicrx · 10-07-2009, 09:03 PM

intheearlyhours · 10-07-2009, 09:06 PM

i really dont think its the injector

intheearlyhours · 10-07-2009, 09:09 PM

my check engine never comes on but my ECU flashes code 9 and thats it

intheearlyhours · 10-08-2009, 09:52 AM

RoughKnight · 10-08-2009, 07:07 PM

CYP Sensor. Open up your dizzy. The sensor is inside your distributor. try probing pin b11 to the orange wire on the distributor and pin b12 to the white wire on your distributor. if it has continuity your fine this will just make sure the wiring is in good shape. if it isnt fix the wiring otherwise you will need a new distributor

jlicrx · 10-09-2009, 10:39 AM

Quote:

Originally Posted by RoughKnight

CYP Sensor. Open up your dizzy. The sensor is inside your distributor.

the CYP sensor is not inside the distributor on the DOHC ZC - it is on the end of the exhaust camshaft and ECU pins are C1 and C2

Cylinder Position Sensor????

RoughKnight · 10-09-2009, 12:05 PM

^ thanks for correcting me!

intheearlyhours · 10-09-2009, 01:26 PM

Lol ok give me something else guys

INJEN78 · 10-09-2009, 01:41 PM

did you check the injector?

intheearlyhours · 10-09-2009, 08:59 PM

not yet it really doesnt make sense for it to be that. or does it? I mean the problem i have is backfiring with number 1 cyl on. I also need to buy a new ohm reader mine broke.

10-07-2009, 05:27 PM	#1
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	I need someone who knows something about a 91 civic jdm Ok please read all of this before you post reply. Ok i have a 1991 Honda Civic (not CRX) Jdm Z/C DOHC. My problem is that when i have the number 1 cylinder plugged in as i should it backfires through what sounds like the exhaust manifold. I have replaced the Dizzy about 6 months ago i have new plugs and wires, i checked the timing 3 times (ITS RIGHT). Someone once told me it could be a number 1 cylinder sensor or something, but than someone else said that they NEVER go bad. When i unplug the injector or just pull the wire from the number 1 cylinder it does not backfire just runs slow. and heres the thing. If i run it on 3 cylinders for about 2 days and than plug the number 1 back in it wont backfire for about 2 hours of driving. Please Please Please help me im so sick of this car right now. Hit me up on my email also brandonniblock@yahoo.com or my AIM- mrbangbangsir p.s. this is not a new swap i have been driving it for about a year or longer Last edited by intheearlyhours; 10-07-2009 at 05:29 PM.

10-07-2009, 06:39 PM	#2
jlicrx Senior Member Join Date: Jun 2003 Location: Colorado Springs Posts: 1,573 iTrader: 0 / 0% Rep Power: 64	did this problem start when you changed plugs and wires? what kind of plugs and wires do you have? anything other than NGK plugs and OEM wires will cause problems __________________ ZCspeed Racing

10-07-2009, 07:12 PM	#4
jlicrx Senior Member Join Date: Jun 2003 Location: Colorado Springs Posts: 1,573 iTrader: 0 / 0% Rep Power: 64	have you checked the fuel injector on the number 1 cylinder? unplug the connector - set the ohm meter to the lowest setting (200?) - measure resistance between the 2 terminals on the injector itself - should be 1.5 to 2.5 ohms - if not, the injector is bad __________________ ZCspeed Racing

10-07-2009, 07:16 PM	#5
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	Ok i did it with the car off and it did nothing and with the car on i got anywhere from 2.0 up tp 4.0 on the setting of 200OHMs Last edited by intheearlyhours; 10-07-2009 at 07:30 PM.

10-07-2009, 07:50 PM	#7
INJEN78 ¿GANGSTA GREMLIN? Join Date: Oct 2007 Location: CT(860) VT(802) Age: 21 Posts: 7,749 iTrader: 5 / 100% Ride: 91 CRX si Rep Power: 214	you test power coming from the plug..and it sounds to me like your is F-ed up. dumping too much fuel into cylinder 1... __________________ R.I.P BEN LEE2/24/08 we love and miss you http://burnoutbox.activeboard.com/in...BID=127652&p=1 GOOD FAST CHEAP, you can pick only two. fast and cheap isn't good good and cheap isn't fast good and fast isn't cheap


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10-07-2009, 06:58 PM	#3
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	i changed the plugs and wires thinking it would fix the problem. So its not the plugs

10-07-2009, 07:35 PM	#6
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	Wait when you say the injector itself do you mean the plug that i pull out of it or something else??? i tested the plug

10-07-2009, 07:58 PM	#8
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	Ok can you guys do me a favor and find how to check the injector from like amanual

10-07-2009, 09:03 PM	#9
jlicrx Senior Member Join Date: Jun 2003 Location: Colorado Springs Posts: 1,573 iTrader: 0 / 0% Rep Power: 64	__________________ ZCspeed Racing

10-07-2009, 09:06 PM	#10
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	i really dont think its the injector

10-07-2009, 09:09 PM	#11
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	my check engine never comes on but my ECU flashes code 9 and thats it

10-08-2009, 09:52 AM	#12
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	bump

10-08-2009, 07:07 PM	#13
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 352 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	CYP Sensor. Open up your dizzy. The sensor is inside your distributor. try probing pin b11 to the orange wire on the distributor and pin b12 to the white wire on your distributor. if it has continuity your fine this will just make sure the wiring is in good shape. if it isnt fix the wiring otherwise you will need a new distributor __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

10-09-2009, 12:05 PM	#15
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 352 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	^ thanks for correcting me! __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

10-09-2009, 01:26 PM	#16
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	Lol ok give me something else guys

10-09-2009, 01:41 PM	#17
INJEN78 ¿GANGSTA GREMLIN? Join Date: Oct 2007 Location: CT(860) VT(802) Age: 21 Posts: 7,749 iTrader: 5 / 100% Ride: 91 CRX si Rep Power: 214	did you check the injector? __________________ R.I.P BEN LEE2/24/08 we love and miss you http://burnoutbox.activeboard.com/in...BID=127652&p=1 GOOD FAST CHEAP, you can pick only two. fast and cheap isn't good good and cheap isn't fast good and fast isn't cheap

10-09-2009, 08:59 PM	#18
intheearlyhours Member Join Date: Jun 2009 Age: 22 Posts: 59 iTrader: 0 / 0% Rep Power: 1	not yet it really doesnt make sense for it to be that. or does it? I mean the problem i have is backfiring with number 1 cyl on. I also need to buy a new ohm reader mine broke.

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I need someone who knows something about a 91 civic jdm