My sister's car. Nissan Altima still runs after she turns if off. Any idea? I think the timing is out of wack. Any better idea?

 

WTF do you mean it still runs? For how long? Give us details.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92SiB18C1 &raquo;</TD></TR><TR><TD CLASS="quote">My sister's car. Nissan Altima still runs after she turns if off. Any idea? I think the timing is out of wack. Any better idea?</TD></TR></TABLE>sure! call nissan. that's a better idea than posting about a nissan in a honda forum

 

Sounds like she has a turbo timer.. haha

 

I know the condition is known as 'dieseling'... unfortunately I don't know much more about it. I would think that leftover fuel that had pooled - ie from dirty fuel injectors - was dribbling into the combustion chamber and igniting somehow, possibly from hot spots, and keeping the engine running... highly doubtful though

Sorry I'm not more help except to tell you that the problem is known.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Type Wah &raquo;</TD></TR><TR><TD CLASS="quote">Sounds like she has a turbo timer.. haha</TD></TR></TABLE>exactly what i was thinking...your sister's hidding a turbo from you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raene &raquo;</TD></TR><TR><TD CLASS="quote">I know the condition is known as 'dieseling'... unfortunately I don't know much more about it. I would think that leftover fuel that had pooled - ie from dirty fuel injectors - was dribbling into the combustion chamber and igniting somehow, possibly from hot spots, and keeping the engine running... highly doubtful though

Sorry I'm not more help except to tell you that the problem is known. </TD></TR></TABLE>

yeah the condition is called "dieseling" it's being a long time since I encountered a car that does that. dam I do know that answer to your question but I can't remember it, it's right on the tip of my tongue.

 

Dieseling....


-Check the idle control valve to see if its working properly

-Check the engine for excessive carbon build-up in the combustion chamber.

-Check fuel management system.

 

Thanks guys. I know it's not Honda but I trust you guys. That's why I post on here.

 

Dieseling was more common with carburators because the fuel doesn't 'turn off' like it does with injection systems. So now you have to have fuel pooled up somewhere, like in the intake manifold. That means your fuel injection system is seriously wacked out. Maybe the FPR is bad so its real rich?

It's always related to lots of carbon build-up in the combustion chamber. That provides hot spots to ignite the fuel without a spark. Higher octane gas probably helps some.

 

Get an alarm recently?

I know some alarms will keep your car running for a certain amount of time after you take the key out, lock and shut all doors... just thought I'd throw that up... (even though the installer will probably tell you about that)...

 

that's what i was thinking too.
maybe a remote start?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92SiB18C1 &raquo;</TD></TR><TR><TD CLASS="quote">Thanks guys. I know it's not Honda but I trust you guys. That's why I post on here. </TD></TR></TABLE>sorry for overreacting a little bit before. Good luck figuring out what's goin on.

 

Dieseling is also caused by overheating. Even in fuel injected engines. You still have fuel pressure in the lines. Check the engine temp.

 

things to check:
-Timming! it might be advanced.
-IM gasket
-EM gasket (exhaust)
-Make sure the spark plugs you are using are the right ones (not hotter)
-The FPR just like the guy said above

Are you running rich? what other symptons you have?

 

could just be a short somewhere once i shut my civic off and took the key out and it was still running i was like what the ****!! i put my key back in and took it out agan and it still ran. Then i turned the light's off with the key out and my car shut off! i **** you not it was so fucked up i fixed some things that i had wired up wrong and it hasnt done it sence.
odd thing though

 

When I read this again, it sounds like the engine keeps running like normal idling.

Dieseling is so much different; it's so rough, knocking, coughing & spitting... It sounds like the engine is gonna come apart...

So - does it run on smoothly like a normal idle? If so, then it's got to be a remote starter or something screwed up in the wiring so the EFI & ignition are still actually turned on.

If you've got a remote starter, look at the wiring for that. Otherwise, look at the wiring connections to the ignition switch. I bet some wire connectors are touching each other. I don't have my Helm book with me; can a stuck main relay do this?

 

Thanks guy. I found out what was wrong. Can you guess? NOTHING It was nothing. She lives in a dorm 2 hrs away. So I drove there just to found out that the damn fan was on when she turns it off which is normal. Goddamn women. She has that car for 2 years and can't tell if the engine is on or not. Wasted 4 hrs total just to know that.

 

haha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92SiB18C1 &raquo;</TD></TR><TR><TD CLASS="quote">Thanks guy. I found out what was wrong. Can you guess? NOTHING It was nothing. She lives in a dorm 2 hrs away. So I drove there just to found out that the damn fan was on when she turns it off which is normal. Goddamn women. She has that car for 2 years and can't tell if the engine is on or not. Wasted 4 hrs total just to know that. </TD></TR></TABLE>

ROTFL....sorry man, but that's the funniest thing I've read all day. Give your sis a for me.