Check engine light...

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Jabber - 12 Sep 2005 14:35 GMT

All,
I have a 1999 S70 with the 2.4 litre normally aspirated engine. Last
week the check engine light came on and there was noticeable misfire at
most engine speeds. I took the car in to the dealer and the OBDII codes
read were 3200 and 3330. The problem was diagnosed as a bad coil on
cylinder 4. That coil and all plugs were replaced. So my first question
is to anyone who tell me what the codes mean. I scoured the 'net but I
believe you need VADIS to interpret them. This past weekend the check
engine light came on again but the car is running just fine. (I have
had this happen before and the dealer tells me it's the old gas cap
problem...) So I'm not too worried but I am wondering if the 5 KM drive
to the dealer to get the misfire fixed might have mucked up anything
else like the O2 sensors or some other engine management device? Any
input is greatly appreciated!

Jordan. 1999 S70 Loaded!

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User - 13 Sep 2005 19:53 GMT

> All,
> I have a 1999 S70 with the 2.4 litre normally aspirated engine. Last
[quoted text clipped - 12 lines]
>
> Jordan. 1999 S70 Loaded!

One reason a misfire code is registered as an emissions fault is that
prolonged leakage of raw fuel into the exhaust will both damage the O2
sensors and the catalytic converter. However 5 km doesn't translate as
"prolonged."

Code 3200 relates to an igniton coil and is an information code that
never occurs alone.
33X0 relates to a faulty coil where the x denotes the offending
cylinder. Fuel trim is disabled. There could be a short to voltage or
ground in the signal cable, open signal cable, loose connection(s) in
connector or a defective ignition coil.

Bob

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The goal when driving is to miss the maximum number of objects.

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Jabber - 14 Sep 2005 14:24 GMT

Thanks so much! The light is still on but I'm not too worried about it.
I assume that since the coil on the number 4 cylinder was replaced that
the 33X0 codes begin at 0 and work their way to 4 as it's a 5 cylinder.

Thanks again!

Jordan 1999 S70 Loaded!

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Mike - 25 Oct 2005 17:05 GMT

Check engine light came on every time since about two years ago. Month
ago before I was going to replace original gas cap on ’98 S-70, I tried
to oil gas cap gasket and it WORKED! It could be that old and dry gas
cap gasket leaked.

I spread out one drop of oil all over the gas cap gasket. Q-tip was
handy. Then I filled the tank. Few days later, check engine light start
to work as supposed to.

Mike

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