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Engine sputters and exhaust smells of sulfer


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tilopa
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Nov 30, 2011, 1:35 AM

Post #1 of 6 (3388 views)
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Engine sputters and exhaust smells of sulfer Sign In

95 Honda Accord, 4 Cyl 2.2, 131K miles. My car started running rough (sputtering), if feels as if it is running out of gas, and the exhaust smells funny (a bit like sulfer). The engine sputter is worse when trying to go up hill. I changed the spark plugs about 3 months ago because it was idleing rough and that fixed that issue.

Can anyone point me in the right direction as to what the issue is.

Thanks.


Mr.scotty
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Nov 30, 2011, 1:38 AM

Post #2 of 6 (3372 views)
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Re: Engine sputters and exhaust smells of sulfer [In reply to] Sign In

Any check or service engine soon light on?
I would still get it scanned for any stored codes to be safe, some auto parts stores might be able to scan it for codes.
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tilopa
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Nov 30, 2011, 1:42 AM

Post #3 of 6 (3370 views)
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Re: Engine sputters and exhaust smells of sulfer [In reply to] Sign In


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Sorry, forgot to mention there are no check engine lights on. What do you mean "stored codes", so a code might be triggered but it is not displaying via the CEL?



(This post was edited by tilopa on Nov 30, 2011, 1:44 AM)


Discretesignals
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Nov 30, 2011, 7:49 AM

Post #4 of 6 (3349 views)
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Re: Engine sputters and exhaust smells of sulfer [In reply to] Sign In

How are the plug wires, distributor cap, and rotor? Those item do wear out and can cause secondary ignition problems that lead to misfiring under load. When you pull your wire's boots inspect the plug wells and boots for engine oil contamination. If there is oil in the plug wells, change the valve cover gasket, tube seals, and grommets. Also inspect your distributor for oil contamination inside. If there is engine oil inside the distributor, the distributor needs replaced.

Since you may have the valve cover off, it would be a good time to do valve lash adjustments. As the valve train components wear the lash increases and causes lower intake manifold vacuum. Honda uses speed density fuel injection, so good intake manifold vacuum is crucial to engine performance.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Nov 30, 2011, 7:56 AM)


Hammer Time
Ultimate Carjunky / Moderator
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Nov 30, 2011, 8:25 AM

Post #5 of 6 (3338 views)
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Re: Engine sputters and exhaust smells of sulfer [In reply to] Sign In

It sounds to me like you have a rich issue going on for some reason. That would be what damaged the plugs and replacing them gives you a temporary reprieve.

You need to look for all possible causes of over rich mixture and/or EGR operation
This engine uses a MAP sensor instead of MAF. You need to check that and it's vacuum supply. Check the fuel pressure regulator vacuum line for any fuel in it.




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



tilopa
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Nov 30, 2011, 8:25 PM

Post #6 of 6 (3315 views)
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Re: Engine sputters and exhaust smells of sulfer [In reply to] Sign In

It was in fact the connection of 2 wires at the distributor cap, they were totally corroded, so I must have been running on 2 cylinders. I changed the wires, cap, and rotor. Does it matter the orientation of the rotor when you put the cap on, that does not effect timing right? Also, what causes the funny exhaust smell if only 2 cylinders are firing properly?
Thanks all for your help.




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