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Re:Rough idle, no power up hill lots of fuel, help please!

  • Godfather68
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10 Aug 2019 06:55 #211964 by Godfather68
So collected the 05 plate Jimny yesterday 37K miles on the 150 mile journey home as car obviously warmed up started to idle very badly, so much so I was having to keep revs above 2k or it would stall but would restart easily and on we would go.

Also could not get above 55 mph, engine appeared to be Erving, but just would not really pull and was really going through the fuel.

Then for a brief 10 mins 100 miles in, everything was great, idle was smooth, pulled easily to 60+ and then normal service resumed.

Any thoughts on where to start to look?

I want an ODB2 scanner/editor any recommended ones from your experience?

Thanks

GF68

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  • Riccy
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10 Aug 2019 07:08 - 10 Aug 2019 07:12 #211965 by Riccy
Check the basics first;
Coilpacks and plugs/leads are a good place to start, after that its cam and crank sensors most likely. Any wiring looking damaged? things like that basically.

Have a look on toolstation's website for their ODB scanner. Cheap, simple and pretty good ;-)

J999 MNY, ULYSSES M18 VVT with ITB's Dyno tested at 130hp

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Last edit: 10 Aug 2019 07:12 by Riccy.
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  • CC Baxter
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10 Aug 2019 07:31 #211966 by CC Baxter
Everything Riccy said, but before that check the air filter.
Chris

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  • Podge
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10 Aug 2019 07:43 #211967 by Podge
You can get a cheap OBDII Bluetooth scanner on ebay for about a tenner. They're all the same. If you're about the Manchester region you're welcome to use mine.

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  • Godfather68
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10 Aug 2019 08:05 #211968 by Godfather68
Thanks for the offer, down south near Newbury unfortunately.

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10 Aug 2019 08:43 #211969 by Godfather68
Would any of those issues, particularly the sensors, show up as an error code if I get a scanner?

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10 Aug 2019 10:24 #211973 by Scimike
Hi,

Go with Riccy 's suggestion first and give everything a check over. The ODB reader is a good addition to the tool box, cheap enough, and if you have one worth a look to see if any codes are logged.

What's the story behind the vehicle, the low mileage suggests it's been little used. Has it been serviced recently?
If you have any doubt whilst you are checking items maybe plugs, air and oil filter, engine oil are a start. Then fill the tank with a premium petrol or fresh supermarket with injector cleaner additive and go for thrash / Italian tune up.
This may sort it out if it's been standing around.

After this it's ODB time if not done so already or IAC valve clean.

Got to start somewhere, so start simple. The Suzuki engine is a reliable lump but doesn't like neglect from a servicing point of view.

Good luck and welcome..

Mike

Yokohama Geolanders, Sony head unit, NAUTILUS Air Horn, DRL conversion, Rear cargo space, Elvis Bobblehead, transfer Guard, Indian hanging Elephant, Koni Heavy track dampers, Custom SS exhaust, Voodoo Doll, Adventure Rack with LED ight bar, vintage ERIBA caravan usually attached (yes it's slow)
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  • Lambert
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10 Aug 2019 11:13 #211978 by Lambert
Sounds suspiciously like a blocked catalytic converter. Though the other things mentioned above are also possible culprits.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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  • Godfather68
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10 Aug 2019 13:23 #211984 by Godfather68
The mot history suggests it has had very little use each year. A bit of service history but not much, which is not so good. I didn’t pay loads for it, so I thought the verified low mileage and general look did not make it seem too big a gamble. Plus I liked the paint job and the fact wheels, lift and snorkel already done made me take the plunge.

It has clearly been used off road, but seems to be straight and really runs well when it is cool.

Following all your advice I have taken plugs out, bodies are very scorched at bottom of white bits, so just put 4 new ones in. Coil packs all look very clean and tidy so going to leave them for a bit.

Air filter is brand new.

Changed oil and filter just now before rain forced me inside!

Ordered a £20 ODB reader on Amazon will be here later tonight so will plug in later and see what that says.

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  • Godfather68
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10 Aug 2019 14:46 #211987 by Godfather68
So it’s not the plugs!

Left it running for 30 mins or so and the issue cam back.

Struggling to find the info on where the two sensors are to do the cold water cooling test. Please can somebody send me a link.

Many thanks.

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10 Aug 2019 14:50 #211988 by mlines
If it's not putting the engine light on then reading the basic code will not show anything. You will then have to look at what the code reader can report from the sensors. Crank/Cam sensor failures do not normally show up well on a reader.



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Martin

2003 M13 early KAP build.
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235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
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10 Aug 2019 14:51 #211989 by mlines
Cam sensor is behind the head on rear right of engine.

Crank is hidden behind alternator, front left of engine

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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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