Fuel smell

[Montana Cruiser]

Since I have owned my new to me 97 FZJ80 I have noticed at start-up (after sitting over night or an extended period) I get a strong raw gas smell coming from the exhaust (I have remote start and can smell it when I approach the truck after starting remotely). The smell does go away after a minute or two, and I dont notice it once the truck as been started a few days over the course of the day? Anyone else experience this? It doesnt take long for the truck to turn over, and it seems to be running strong. Any ideas?

 

[cruiserdan]

Are you sure it is "raw" as opposed to "rich"?

 

[IdahoDoug]

Good thing you've got that remote start, eh? Heh.

I had a raw (fresh, unburned) gas smell around my 80 and put a new Toyota gas cap on it. Gone. Few realize there's a little valve in the Toyota cap and it ages and does not seal well.

DougM

 

[GXO]

Ditto IDoug. New cap did it for me as well.

Now I need to get after the charcoal canister as it too is stinky.

 

[RavenTai]

Anyone else experience this? Any ideas?

yep mine does this also, especially on cold winter morings, its running rich, I beleave that is normal, until a fuel injected motor warms up it is running open loop, (no feedback from O2 sensors) it estimats fuel needed by RPM, air flow and internal fuel curves

 

[e9999]

"aaaaah, the smell of gasoline in the morning..."
Fwoop Fwoop Fwooop (sound of helicopters in the background...)
E

 

[CDN_Cruiser]

I replaced the gas cap - no fix. Raven sounds like my situation (or I need to throw a match at the charcoal canister)

Cheers, Hugh

 

[Beowulf]

The quote should be "napalm" (Nasty stuff)

-B-

 

[e9999]

The quote should be "napalm" (Nasty stuff)

-B-

yes, Beo, but what would be the post relevance, eh?

e

 

[Beowulf]

Since when did post relevance stop you (or anyone else) from posting?

-B-

 

[e9999]

Since when did post relevance stop you (or anyone else) from posting?

-B-

never, but that's completely irrelevant...!

E

 

[rdublin]

Well, technically napalm is just jellied gasoline, so you're covered either way!

 

[BillyGoatMTB]

Bump

Evening Mud

Any updates on this? Ill start with a factory cap and in other threads on this subject it's been suggested the cat bad doesn't work till up to temp and the 1fz is an open fuel loop till warmed up, resulting in rich exhaust smell which is much more noticeable in cold weather cold starts.

I'll order a factory cap from @NLXTACY to start.