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Gtir Motorsport club » Tech room » Help and Advice » kangaroo juice

kangaroo juice

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1kangaroo juice Empty kangaroo juice on 1st June 2016, 6:44 pm

Stu

Stu
Admin
Admin
On light throttle while driving at around 2k rpm the car runs like it has kangaroo juice in it.
It drives fine passed 2k rpm
Its mainly when in trafic or driving at 30mph
The car hates driving slow.
I have checked all vacuums. Had a new gasket on the throttle bodies.
Car boosts fine and holds it.
On idle it does drop to 500rpm every so often.
Sits at around 900rpm normal.
Its had a new fuel filter.
I havent checked the gaps on the plugs yet. Have ordered a feeler gauge.
What can i check. Ive done fault code check and checked all plugs.
Its had a new coolant sensor and temperature sensor.
I cant think of anything else to check.


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2kangaroo juice Empty Re: kangaroo juice on 1st June 2016, 6:55 pm

PartyPete

PartyPete
the one star club
the one star club
Could try cleaning the Maf again?

3kangaroo juice Empty Re: kangaroo juice on 1st June 2016, 7:10 pm

Stu

Stu
Admin
Admin
Yeah thats an option. I will get some more electical cleaner..

I have also changed the carbon canister as my old one was fucked. New one is a good one.

The pips on the throttle bodies. Can i loop those like the ones i have already looped off the old vacuum system i deleted.
2 of the pips are very loose so im thinking maybe its sucking in air?


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4kangaroo juice Empty Re: kangaroo juice on 1st June 2016, 8:41 pm

gtir_woody

gtir_woody
moderator
moderator
It's funny because my old n14 with a R motor used to have this exact issue, I ripped the motor out before I solved it though.

5kangaroo juice Empty Re: kangaroo juice on 2nd June 2016, 1:33 pm

Stu

Stu
Admin
Admin
So i have noticed that the fault doesn't happen until the engine gets up to temperature.
So i have ordered a new coolant temperature sensor.
Next in the list will be an idle control valve and sensors.


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6kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 6:44 am

Mr B

Mr B
gtir technician
gtir technician
I would also look at fuel injectors too if nothing else conclusive & ignition timing, dizzy, coil leads, plugs .
Afm Meter issue or related wiring or piping seems likely area , not much clues to narrow it down really .
I would use a wideband on it and a chinese Nissan cable with obd scantech (nissan) 1.29 software to read and log live data to see if gives any clues .

7kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 9:07 am

Stu

Stu
Admin
Admin
Thanks B.
I was thinking injectors. Will try and grab some evo ones as thats where i was going next and i have the fueling for them now.
All the vacuum is correct and theres no leaks that i can find.
I will see if my bro still has is data logit.
I have a few parts on order so will try those first and then move on.


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8kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 9:10 am

gtir_woody

gtir_woody
moderator
moderator
I thought if it was injectors it would be doing it constantly not intermittent?

9kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 10:35 am

shroom

shroom
I think its just getting scared Stu. I have the same issue when in Wolverhampton. I start getting the shakes under 30mph so have to keep going quick through the town! Its called sh1tholefobia









Waits for some broseley jokes :-P

10kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 10:35 am

shroom

shroom
Or actually it probably only does it when your warmed up and in Telford lmao

11kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:04 pm

Stu

Stu
Admin
Admin
@shroom wrote:I think its just getting scared Stu. I have the same issue when in Wolverhampton. I start getting the shakes under 30mph so have to keep going quick through the town! Its called sh1tholefobia









Waits for some broseley jokes :-P

@shroom wrote:Or actually it probably only does it when your warmed up and in Telford lmao

Hahaha you could be right there mate. Im not going to retaliate with broseley jokes because i wouldnt want a load of inbred farmers with 6 toes on each hand chasing me next time i visit Laughing


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12kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:05 pm

Stu

Stu
Admin
Admin
I took the spark plugs out this morning and gapped them.
2 were at 0.6 and 2 were at 0.7.
Its runni g a lot better now.
Still has a slight issue still.


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13kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:12 pm

Mr B

Mr B
gtir technician
gtir technician
@gtir_woody wrote:I thought if it was injectors it would be doing it constantly not intermittent?
I assumed was persistent once hot, just wondering if injector issue causing some fuel issues such as over fueling that not such noticeable issue while cold, indeed not most likely but remembered earlier posts about over fueling & smoke. Ideally want wideband & also see sensor data when running to try pick up more clues on how all things are working & to what the cause could be.

14kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:15 pm

Mr B

Mr B
gtir technician
gtir technician
@Stu wrote:I took the spark plugs out this morning and gapped them.
2 were at 0.6 and 2 were at 0.7.
Its runni g a lot better now.
Still has a slight issue still.
Do plug tips suggest it running overly rich !
I would be inclined bang in new set of plugs as cheap & test leads & coil.
I have seen bad coils cause similar type issue ...

15kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:18 pm

Stu

Stu
Admin
Admin
Yes B the plugs were black. The tips weren't tho.
I will grab some plugs. Only £8 a set.
Thanks mate.


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16kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:38 pm

Stu

Stu
Admin
Admin
Just ordered spark plugs and a new coil pack. Will get some new ht leads too.


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17kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:47 pm

Mr B

Mr B
gtir technician
gtir technician
You got a wideband stu !?
really worth checking fueling if can ...

18kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 3:59 pm

Stu

Stu
Admin
Admin
I havent got one B.
I have removed my hks afr so fueling is standard again at the moment.
I will source a afm to replace mine and i need to make another hard pipe up so i can remove my tights lol


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19kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 4:40 pm

Mr B

Mr B
gtir technician
gtir technician
No keep your tights on please sweetie kangaroo juice Tart10

20kangaroo juice Empty Re: kangaroo juice on 3rd June 2016, 5:02 pm

Stu

Stu
Admin
Admin
@Mr B wrote:No keep your tights on please sweetie kangaroo juice Tart10
Hahaha


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21kangaroo juice Empty Re: kangaroo juice on 6th June 2016, 5:04 pm

Stu

Stu
Admin
Admin
I have taken the iac off and stripped and cleaned it. Replaced it and my idle was much better Smile still had a slight dip tho.
Today my sparkplugs and coil arrived. I have installed these and also cleaned the afm. Havent driven the car but started it and the idle seamed a lot better.
Im waiting for my new ht leads to arrive now.
I have got a new coolant sensor to go on also but will replace that when my rear samco hoses arrive Smile
I took the ignition module off and there was oil under it. So have cleaned that and fit it back on.
I will report back when i have driven the car.


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22kangaroo juice Empty Re: kangaroo juice on 6th June 2016, 7:55 pm

gtir_woody

gtir_woody
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moderator
Hopefully the only report you have is its running great now Laughing

23kangaroo juice Empty Re: kangaroo juice on 6th June 2016, 9:20 pm

Stu

Stu
Admin
Admin
It still has the hesitation at around 2k rpm when warm but not as noticeable. And the revs are better but still not right.
Gonna get an afm to see if that sorts it and probably another hardpipe.


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24kangaroo juice Empty Re: kangaroo juice on 8th June 2016, 2:10 pm

Stu

Stu
Admin
Admin
I changed the ht leads and coolant sensor today and noticed a massive difference.
Car wouldnt idle lol
Checked the mixture screw and it was wound right in tight.
So i released it and wound it out until the revs were just right.
All seams good now Smile


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25kangaroo juice Empty Re: kangaroo juice on 11th August 2016, 6:22 pm

Stu

Stu
Admin
Admin
I think I have finally sorted it Smile
Bought a hiteq relocation hardpipe and fit it and on a short drive all is good again.
Need to go on a long drive to see but it all seems fixed Smile


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