Too much fuel or too little spark?

mr3 · 09-14-2009, 05:54 PM

I'm sorry these threads are getting annoying but my 20v is allmost ready to go and I keep running into problems. I checked my oil and it's full of gas so I'm going to have to change that out. When I changed the plugs they were soaked with gas. I changed out the cap and rotor and put in new plugs. When I tested the plugs I do see some spark but it's very little. It doesnt look strong at all. 2 of the plugs were sparking like normal and 2 look like they are shorted. I have the reccomended NGK 2978 spark plugs. All were brand new. My wires look like they could use a replacing but if I dont have to, I wont for now. Any suggestions are greatly appreciated.

Jackstand Queen · 09-16-2009, 11:14 AM

You answered the question posited in your thread.

Weak spark

Try a new coil. Or if it uses Coil Packs (4 small coils), a new coil pack.

mr3 · 09-16-2009, 11:51 AM

I think I got it. New oil and new gas today.

mr3 · 09-16-2009, 02:34 PM

Too much gas. The car will start right up if it's starving for fuel. I put 2 or 3 gallons in and it's just flooding.

mr220v · 09-16-2009, 02:37 PM

Your CEL stays off right?

mr3 · 09-16-2009, 03:16 PM

No right now it's on. I tried to jump t and e1 and I couldnt get it to throw the codes. Weather is getting crappy so I wont be working on the car for a few days.

mr3 · 09-16-2009, 03:57 PM

1 flash, then 2 flashes.

mr220v · 09-16-2009, 04:09 PM

Code 12 is for the distributor/crankshaft sensor

Code 21 is for the o2.

mr3 · 09-16-2009, 04:11 PM

I think it was 21. Would that not let it start? I just looked at my paper that I wrote it on and it went 2..1..........2..1. I'm going to say that that would be o2.

mr220v · 09-16-2009, 04:43 PM

code 12 and it wouldn't start at all. So yeah, code 21.

mr3 · 09-16-2009, 04:55 PM

I kinda put off buying one of them. The 88 I came with a 4 wire o2 but the plug doesnt go in all the way. I'm wondering if I can just use that or if I have to go with the Previa one like you mentioned before.

dirocyn · 09-18-2009, 01:06 PM

O2 sensor code is also set if fuel mix is too rich and the ECU can't lean it out--a situation you'll get if you have an injector leak (blame the alcohol in the gas) or too much fuel pressure. That would also explain the gas in the oil.

09-14-2009, 05:54 PM	#1 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	Too much fuel or too little spark? I'm sorry these threads are getting annoying but my 20v is allmost ready to go and I keep running into problems. I checked my oil and it's full of gas so I'm going to have to change that out. When I changed the plugs they were soaked with gas. I changed out the cap and rotor and put in new plugs. When I tested the plugs I do see some spark but it's very little. It doesnt look strong at all. 2 of the plugs were sparking like normal and 2 look like they are shorted. I have the reccomended NGK 2978 spark plugs. All were brand new. My wires look like they could use a replacing but if I dont have to, I wont for now. Any suggestions are greatly appreciated.

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09-16-2009, 11:14 AM	#2 (permalink)
Jackstand Queen Cage Fighter Join Date: May 2008 Posts: 840 Thanks: 75 Thanked 64 Times in 60 Posts iTrader Rating: (1/100% )	You answered the question posited in your thread. Weak spark Try a new coil. Or if it uses Coil Packs (4 small coils), a new coil pack.

09-16-2009, 11:51 AM	#3 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	I think I got it. New oil and new gas today.

09-16-2009, 02:34 PM	#4 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	Too much gas. The car will start right up if it's starving for fuel. I put 2 or 3 gallons in and it's just flooding.

09-16-2009, 02:37 PM	#5 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 2,529 Thanks: 13 Thanked 176 Times in 147 Posts iTrader Rating: (11/100% )	Your CEL stays off right?

09-16-2009, 03:16 PM	#6 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	No right now it's on. I tried to jump t and e1 and I couldnt get it to throw the codes. Weather is getting crappy so I wont be working on the car for a few days.

09-16-2009, 03:57 PM	#7 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	1 flash, then 2 flashes.

09-16-2009, 04:09 PM	#8 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 2,529 Thanks: 13 Thanked 176 Times in 147 Posts iTrader Rating: (11/100% )	Code 12 is for the distributor/crankshaft sensor Code 21 is for the o2.

09-16-2009, 04:11 PM	#9 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	I think it was 21. Would that not let it start? I just looked at my paper that I wrote it on and it went 2..1..........2..1. I'm going to say that that would be o2.

09-16-2009, 04:43 PM	#10 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 2,529 Thanks: 13 Thanked 176 Times in 147 Posts iTrader Rating: (11/100% )	code 12 and it wouldn't start at all. So yeah, code 21.

09-16-2009, 04:55 PM	#11 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	I kinda put off buying one of them. The 88 I came with a 4 wire o2 but the plug doesnt go in all the way. I'm wondering if I can just use that or if I have to go with the Previa one like you mentioned before.

09-18-2009, 01:06 PM	#12 (permalink)
dirocyn Cage Fighter Join Date: Mar 2009 Location: Murfreesboro, TN Posts: 1,181 Thanks: 14 Thanked 110 Times in 108 Posts iTrader Rating: (0/0% )	O2 sensor code is also set if fuel mix is too rich and the ECU can't lean it out--a situation you'll get if you have an injector leak (blame the alcohol in the gas) or too much fuel pressure. That would also explain the gas in the oil.