Fuel Smell in Cabin

941 Views 7 Replies 4 Participants Last post by Gcc210, 3 mo ago

Gcc210

Discussion Starter · 4 mo ago

Just like the title says. I had an enclosed Catch Can in the engine bay for about 3k miles. Surprised at how much fuel/oil I got in that time. That aside I noticed at idle I smell that same fuel/oil smell in my cabin. I'm assuming it's from the engine bay as the intake vents are in the window cowls and saw on civics the PVC hose may permeate and someone also said (on civics) something from the factory wasn't sealed right causing the smell. Wanted to know of anyone else with or without a CC had that smell inside their cabin and what the fix was. I checked the hose lines and nothing is leaking that I can see or loose but you can definitely smell the fumes under the hood. Before uninstalling my CC And running it for a few hundred miles to see if it was the CC, i was curious to see if anyone else had this experience and what the fix/problem was. 2021 Honda Passport EXL with 11,000 miles

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carpayments4life

· #2 · 4 mo ago

The connector coming off the exhaust is larger then the connector going in to the intake manifold.
When you installed the CC, you could have split the end of the hose that you connected to the exhaust's connector.
The OEM hose that connects the exhaust to the intake manifold is # 11856-RLV-A00 and you can see that it is stepped.

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Gcc210

Discussion Starter · #3 · 4 mo ago

carpayments4life said:
The connector coming off the exhaust is larger then the connector going in to the intake manifold.
When you installed the CC, you could have split the end of the hose that you connected to the exhaust's connector.
The OEM hose that connects the exhaust to the intake manifold is # 11856-RLV-A00 and you can see that it is stepped.

I'll look at the connections for a split! It wasn't a hard install but I also noticed the washers / gaskets that are between the CC in/out ports and the metal ports that connect to the hoses are already cracked and looks to be dried out so I'm thinking MAYBE the smell is coming from that too but I'll have to stick my nose against that spot and smell it.

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Gcc210

Discussion Starter · #4 · 4 mo ago

carpayments4life said:
The connector coming off the exhaust is larger then the connector going in to the intake manifold.
When you installed the CC, you could have split the end of the hose that you connected to the exhaust's connector.
The OEM hose that connects the exhaust to the intake manifold is # 11856-RLV-A00 and you can see that it is stepped.

Also also the way its connected is the PCV hose was disconnected from the PCV valve then connected to the CC, then the supplied CC hose to the PCV valve so I don't think the end of the OEM hose to the manifold could have gotten cracked but ill still look for one

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BlackCarsOnly

· #5 · 4 mo ago

If we take the CC factor out of the equation.

The most common reason for the smell of gasoline in a lower mileage car is easily The EVAP Canister. If it was older, I'd say it was the purge solenoid, which takes 2 minutes to replace.
Often happens because ppl over fill their fuel tank. Trying to squeeze in that extra liter of gas.
That's just my guess.

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Gcc210

Discussion Starter · #6 · 3 mo ago

BlackCarsOnly said:
If we take the CC factor out of the equation.

The most common reason for the smell of gasoline in a lower mileage car is easily The EVAP Canister. If it was older, I'd say it was the purge solenoid, which takes 2 minutes to replace.
Often happens because ppl over fill their fuel tank. Trying to squeeze in that extra liter of gas.
That's just my guess.

Yeah but fortunately I live in NJ and don't pump my own gas/let the guys over fill it. I don't think any station in NJ does that anymore.

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ares

· #7 · 3 mo ago

I have noticed that in different honda vehicles I've sat on, outside air gets into the cabin pretty easily.

Apologies if that does not help you at all, but it was an observation that's kinda related to the topic.

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Gcc210

Discussion Starter · #8 · 3 mo ago

ares said:
I have noticed that in different honda vehicles I've sat on, outside air gets into the cabin pretty easily.

Apologies if that does not help you at all, but it was an observation that's kinda related to the topic.

Yeah I have to constantly put it on recirc which I don't like to do with the heat on. I literally just bought a charcoal cabin air filter to see if that helps. My research shows that it should eliminate the fuel smell from the engine

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