Another discovery- single carbon fouled spark plug
12-21-2002, 03:00 PM
#1
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Thread Starter
Join Date: Aug 2000
Posts: 2,530
Another discovery- single carbon fouled spark plug
Alright I pulled all my plugs to try to clear my flooded engine. All the plugs are soaked in gasoline, so I'm gonna let them sit for a while. No wonder my car wouldnt start. In the process of pulling the plugs I found that the middle rear plug is quite carbon fouled while all of the other ones look normal. I did a search and came up with it could be a sticky fuel injector. Has anybody experienced this before? Looks like some people say use Techron or some other fuel injector cleaner.
12-21-2002, 07:47 PM
#2
Donating Maxima.org Member
Join Date: Apr 2002
Posts: 928
Re: Another discovery- single carbon fouled spark plug
Originally posted by ericdwong
Alright I pulled all my plugs to try to clear my flooded engine. All the plugs are soaked in gasoline, so I'm gonna let them sit for a while. No wonder my car wouldnt start. In the process of pulling the plugs I found that the middle rear plug is quite carbon fouled while all of the other ones look normal. I did a search and came up with it could be a sticky fuel injector. Has anybody experienced this before? Looks like some people say use Techron or some other fuel injector cleaner.
Alright I pulled all my plugs to try to clear my flooded engine. All the plugs are soaked in gasoline, so I'm gonna let them sit for a while. No wonder my car wouldnt start. In the process of pulling the plugs I found that the middle rear plug is quite carbon fouled while all of the other ones look normal. I did a search and came up with it could be a sticky fuel injector. Has anybody experienced this before? Looks like some people say use Techron or some other fuel injector cleaner.
12-22-2002, 10:22 PM
#4
Another thing...I changed my air filter, fuel filter, and spark plugs today. Actually, my dad did the actual taking out and putting in the new sparks. He showed me that 1 or 2 were carbon'd. My dad's busy @ the moment but I'll find out which ones were bad.
Another note: the old plugs were "cold" plugs, which's strange. The previous owner had the car serviced for 30k service. The fuel filter was Nissan, but the air filter was fram. And the plugs were NGK "cold" plugs. Why would the dealership use non-nissan parts and put in cold plugs?
Jae
Another note: the old plugs were "cold" plugs, which's strange. The previous owner had the car serviced for 30k service. The fuel filter was Nissan, but the air filter was fram. And the plugs were NGK "cold" plugs. Why would the dealership use non-nissan parts and put in cold plugs?
Jae
12-23-2002, 04:28 AM
#5
I couldn't fix your brakes, so I made your horn louder
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Join Date: Jan 2002
Posts: 2,588
Originally posted by ThurzNite
Another thing...I changed my air filter, fuel filter, and spark plugs today. Actually, my dad did the actual taking out and putting in the new sparks. He showed me that 1 or 2 were carbon'd. My dad's busy @ the moment but I'll find out which ones were bad.
Another note: the old plugs were "cold" plugs, which's strange. The previous owner had the car serviced for 30k service. The fuel filter was Nissan, but the air filter was fram. And the plugs were NGK "cold" plugs. Why would the dealership use non-nissan parts and put in cold plugs?
Jae
Another thing...I changed my air filter, fuel filter, and spark plugs today. Actually, my dad did the actual taking out and putting in the new sparks. He showed me that 1 or 2 were carbon'd. My dad's busy @ the moment but I'll find out which ones were bad.
Another note: the old plugs were "cold" plugs, which's strange. The previous owner had the car serviced for 30k service. The fuel filter was Nissan, but the air filter was fram. And the plugs were NGK "cold" plugs. Why would the dealership use non-nissan parts and put in cold plugs?
Jae
12-23-2002, 12:01 PM
#6
Senior Member
Join Date: Aug 2000
Posts: 2,835
Originally posted by ThurzNite
CostCo sells the chevron stuff for cheap: Box of 4 bottles for $9.49. Cheap!!! If you want the strength of BG44k, just throw in 2 bottles of Chevron and it's still cheaper than BG.
Jae
CostCo sells the chevron stuff for cheap: Box of 4 bottles for $9.49. Cheap!!! If you want the strength of BG44k, just throw in 2 bottles of Chevron and it's still cheaper than BG.
Jae
12-23-2002, 02:27 PM
#7
Donating Maxima.org Member
Join Date: Apr 2001
Posts: 4,154
in this instance, how many times have you been trying to start the car? Fouled plugs can occur quickly (I'm talking from experience with old muscle cars) in your kind of situation, so you may have done this with all your recent testing with the tranny out and the bad sensor. Wow man...come test my car! 
As always, good luck.
As always, good luck.
12-23-2002, 02:56 PM
#8
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Thread Starter
Join Date: Aug 2000
Posts: 2,530
Originally posted by Lime
in this instance, how many times have you been trying to start the car? Fouled plugs can occur quickly (I'm talking from experience with old muscle cars) in your kind of situation, so you may have done this with all your recent testing with the tranny out and the bad sensor. Wow man...come test my car!
As always, good luck.
in this instance, how many times have you been trying to start the car? Fouled plugs can occur quickly (I'm talking from experience with old muscle cars) in your kind of situation, so you may have done this with all your recent testing with the tranny out and the bad sensor. Wow man...come test my car!
As always, good luck.
Ahh yes, but that particular one was fouled by carbon, not by gas. The carbon would have had to happen earlier when the car was getting spark hehe. I talked to BriGuyMax and he said that he just replaced the entire injector. I'm not gonna go that route though, at least not yet.
12-23-2002, 02:58 PM
#9
Maybe that coil is bad.
Originally posted by ericdwong
Ahh yes, but that particular one was fouled by carbon, not by gas. The carbon would have had to happen earlier when the car was getting spark hehe. I talked to BriGuyMax and he said that he just replaced the entire injector. I'm not gonna go that route though, at least not yet.
Ahh yes, but that particular one was fouled by carbon, not by gas. The carbon would have had to happen earlier when the car was getting spark hehe. I talked to BriGuyMax and he said that he just replaced the entire injector. I'm not gonna go that route though, at least not yet.
12-24-2002, 08:35 AM
#11
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Join Date: Dec 2001
Posts: 2,084
Would one bad coil cause the car to act as eric's and mine? The jumping of the rpm gauge? the not starting? the flooding?
I'm looking for a reason why the car suddenly didn't want to start just when I tried to install the Hypergrounds. I thought because of the routing of the wires I may have accidently arched something. This gets me to thinking that "something" I arched may have been a coil pack, but I didn't think 1 bad coil pack would cause starting problems. I figure a bad coil pack would not let the car run at all since everything is computer controlled, and my car seems to run just fine once it does start (no missing, or really rough idle or anything like that).
You guys let me know.
BTW, eric I'm sorry to keep chimming in on your threads, but it seems we have a similar problem.
I'm looking for a reason why the car suddenly didn't want to start just when I tried to install the Hypergrounds. I thought because of the routing of the wires I may have accidently arched something. This gets me to thinking that "something" I arched may have been a coil pack, but I didn't think 1 bad coil pack would cause starting problems. I figure a bad coil pack would not let the car run at all since everything is computer controlled, and my car seems to run just fine once it does start (no missing, or really rough idle or anything like that).
You guys let me know.
BTW, eric I'm sorry to keep chimming in on your threads, but it seems we have a similar problem.
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