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Vehicles (17 Jan 2019)

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Sluggish up hills, blocked cat?

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21 Dec 2018 23:37 #199292 by jjabbot
Anyone have any thoughts on why my 2002 Jimny would be sluggish up hills? Won't rev beyond 3000 rpm, and sounds pained doing it. Read online it might be a blocked cat? Just changed the front lambda sensor after it triggered the eml, but that hasn't improved things. Thoughts?

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  • Gen 3 Jimny
22 Dec 2018 07:45 #199296 by mlines
Sounds like a possible blocked cat

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Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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22 Dec 2018 08:19 - 22 Dec 2018 08:20 #199298 by JustCallMeRick
Flexi cam trough Lambda sensor hole to inspect the top of the cat. It should be a nice honycomb structure.
Last edit: 22 Dec 2018 08:20 by JustCallMeRick.

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22 Dec 2018 11:01 #199307 by Max Headroom
Not something daft like blocked air-filter is it?
I changed a brand new paper filter for a K&N job and was totally surprised at the difference it made.


IF IT AINT BROKE, KEEP FIXING IT UNTIL IT IS

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22 Dec 2018 11:19 #199310 by yakuza

JustCallMeRick wrote: Flexi cam trough Lambda sensor hole to inspect the top of the cat. It should be a nice honycomb structure.

Mine did not look to bad actually but the improvement when changed was awesome! Still amazed by the improvement 6 months later.
I tried flushing it with water first which gave a small improvement.

Mine is the VVT not sure if the older ones have the two-cat system but the first one in the manifold often disintegrates and the dust and debris from it clutters up the second one.

I have completely removed the first one and use a OEM cat for up to 2.0 liter engines where the number two cat was.
It has produced two fault codes for ineffective cat in cold weather but just delete those and its ok.

Bought mine at Biltema, it is a kind of Halfords i guess.

2005 Jimny M16A VVT, 235 BFG MT, 2" Trailmaster, 17%/87% high/low gears.

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03 Jan 2019 18:56 #199977 by jjabbot
An update. Cat changed an sluggishness up hills gone!

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