| Author | Topic |
|---|
I Supported Toymods
Location:
perth
Registered:
September 2002
|
 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's single!
|
Mon, 12 September 2005 16:06
|
 |
haha hey ppl,
no shit i drove this beauty today but i need some help guys!
-- Details --
1992 soarer
manual
mid-range FMIC
surge tank
18" rims (irrelevant but sick)
tail happy (also irrelevant but sick)
0.5 Bar boost, stock turbos
169000kms on clock
-- Problem --
Ok, if you accel slowly (low throttle) the engine revs smoothly, however if you plant the thottle more than halfway the engine revs stutter (misses) all the way to redline and its makes a sort of bubbly noise similar to the bubbly backfire noise you get when you lift of the throttle while in gear with some cars. This problem apparently is intermittent however when i drove it today it happened every time i tried to accelerate hard. It still pulls pretty damn hard, and there was no noticable smoke from the exhaust whilst under load.
-- Possible Problem --
I really don't know but im thinking it may be a tuning issue. Apparently the guy had it tuned just before she picked it up.
Check plugs and leads?
PLEASE ADVISE 
-daniel-
|
|
|
Location:
Perth, WA
Registered:
December 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Mon, 12 September 2005 16:38
|
|
always pays to do a few things to a new car..
might be injectors...
check the connections/change plugs, leads, and get the injectors cleaned up... also, check the filters, make sure air and fuel filters are clean and not crudded up
Eldar.O.
|
|
|
Location:
Sydney
Registered:
March 2003
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Mon, 12 September 2005 21:33
|
|
yep, this happened to mine before, I changed, plugs, ignitor, but ended up being one of the plugs on the injectors. Just a note, not to put the foot down when it does it, back off right away, basically, no spark is getting in.
Edit: Whose single? Pics? 
[Updated on: Mon, 12 September 2005 21:33]
|
|
|
I Supported Toymods
Location:
perth
Registered:
September 2002
|
|
|
Location:
Perth
Registered:
November 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Tue, 13 September 2005 23:03
|
|
it sounds like the fuel system is buggered. I changed my fuel pump (which was toast) to a Walbro 550hp and haven't looked back.
Its a case of the ecu retarding the ignition due to the air/fuel ratio leaning out something kronic.
If you have a nissan you would be rebuilding your motor by now.
|
|
|
Location:
Adelaide
Registered:
June 2005
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 00:21
|
|
|
i'd also check the throttle position sensor, if it is alright under half pedal maybe the sensor (which is on a slide i think) is farked at the end half of its range. this would mean incorrect readings to computer.
|
|
|
Location:
Canning Vale WA
Registered:
November 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 00:53
|
|
hey bayka, i selling my car... hint hint.. you interested??
good luck with it,
P.S i couldnt tell my bro that you called coz he was out till fucking late and i ended up fucking off home rather then waiting for him.
|
|
|
Location:
Newcastle, Australia
Registered:
March 2005
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 01:44
|
|
|
Could be the coil packs too. Replacing them fixed a myriad of high-load issues with my car.
|
|
|
Location:
Sydney
Registered:
May 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 06:21
|
|
Plugs and/or coilpacks.
She is also welcome here
http://www.lexus.australia.as/
at our Soarer specific forum
|
|
|
Location:
Perth
Registered:
November 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 06:31
|
|
when was your fuel filter last changed? Ever?
I have a car about the same age and if changing coilpacks/sparkplugs doesn't work check out your fuel pump.
My car used to splutter (occasionally) when the boost came straight on, almost always on full load. It was rather embarrassing especially when trying to take someone at the lights.
|
|
|
I Supported Toymods
Location:
perth
Registered:
September 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 07:53
|
|
Yep ok, thanks guys , We'll check out the
fuel filter, plugs , coil packs first.
I DOUBT its the fuel system as it sounds pretty serious (surge tank in engine bay, and can hear the fuel pump in the cabin)
Cheers
-daniel-
|
|
|
Location:
Perth
Registered:
November 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Wed, 14 September 2005 10:36
|
|
its got a surge tank in the engine bay? Doesn't that sound a little dangerous?
hope its not the fuel pump, but from memory my pump was a whinny little mofo. Check the fuel filter though as replacement of those is usually neglected due to its poor position. 
Tell that chick good choice in car 
|
|
|
Location:
Montrose, VIC
Registered:
May 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Thu, 15 September 2005 13:56
|
|
Tell you what, I'll sell you some leads.. CHEAP! 
Your best bet is substitution of suspect parts, if you can possumly find parts to substitute.
|
|
|
Location:
Perth, WA
Registered:
December 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Thu, 15 September 2005 16:38
|
|
and get her to come along to a cruise of some description
Eldar.O.
|
|
|
Location:
Perth
Registered:
November 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Thu, 15 September 2005 22:24
|
|
|
hey I got 3 coilpacks that I have spare, if you are still trouble shooting
|
|
|
I Supported Toymods
Location:
perth
Registered:
September 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Fri, 16 September 2005 16:07
|
|
Mate borrowing coil packs would be ace. We havn't even STARTED physically substituting suspect parts yet.
This coming week we'll replace the fuel filter because it definately could be the ECU massively retarding timing or cutting spark due to leaning out, it just runs so rough while its doing so im more inclined to think it would be intermittent coil pack / lead failure or sumpin under heavy load...
Thanks guys
-daniel-
|
|
|
Location:
Canberra
Registered:
May 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 05:39
|
|
My son's workshop had an identical problem, this time on a UZZ30 Soarer.
Symptom: car stuttered under load
Diagnosis: Sniffer up tail pipe, indicated way too rich.
Cause: Stuffed HT ignition leads.
Unfortunate Result: Unburnt fuel entering into the cats, with subsequent burn out of cats.
New leads, new plugs, and a pair of cats later, all was good.
cheers Chuck.
|
|
|
I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 05:45
|
|
was the "She's single" to get all the desperate guys (like me) to read the thread?
if so, picsorban
|
|
|
Location:
Inner west,Sydney
Registered:
October 2004
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 06:45
|
|
Tail happy? so am I. whats her name? 
|
|
|
I Supported Toymods
Location:
perth
Registered:
September 2002
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 10:22
|
|
hahaha, yes i admit the "she's single" was to get all those needed replies from you guys....i know i would have replied if i could
No pic available, and she can tell you her own name when she hurry's up and registers at toymods.
Thanks for the info, we'll get a sniffer up the tailpipe to check air-fuel before taking it further than fuel filter change over.
Peace
|
|
|
Location:
Melbourne
Registered:
November 2003
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 10:50
|
|
| bayka wrote on Sat, 17 September 2005 20:22 |
Thanks for the info, we'll get a sniffer up the tailpipe...
|
Just make sure you do this to the CAR'S tailpipe, not hers. Some girls get narky at that.
...
My first advice would be to stop making the car do this. Who knows what kinda damage it's doing.
|
|
|
I Supported Toymods
Location:
Wollongong, NSW
Registered:
December 2003
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 16:23
|
|
My Corolla (7A-FE) is doing EXACTLY what you're describing. I'm hunting through ignition fixes at the moment, starting with leads and possibly dizzy cap.
I know my knock senor is cactus too, but I don't think that's causing this particular problem.
|
|
|
Location:
Melbourne
Registered:
March 2003
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sat, 17 September 2005 22:29
|
|
Coil pack connnections would be the first port of call, second: is spark gap, as some mechanics read the incorrect label supplied that states 1.1mm gap. Which should read .8mm gap.
The uzz30 has leads the jzz30 has coil packs, so don't bother searching for leads.
Swap coil packs then if that fails bridge the fp to b+ ports in the diagnostics to make the fuel pump run at 12v. This will tell you if its the fule pump ecu on the way out.
You mention it has been tuned, so what management is in place?
If the stutter occurs at about 3500rpm then it sounds like when its changing from closed loop to open loop. That is when its leaving the toyota ecu to a piggyback controlling the wide open throttle. (Just a guess, but i have been there once before)
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 1JZGTE stutter problem, pls help guys, my friend just bought a manual 92 soarer.. and she's sin
|
Sun, 18 September 2005 11:02
|
|
i dont think the ecu is smart enough to retard timing when runnin lean
the o2 sensor stops workin after 3000 rpm or somewhere round there when the ecu goes into open loop mode so the ecu doesnt know what the mixture is after that and adjust anyhting
u have to determine if its spark or fuel
crimp the fuel return line and see if it gets better
this will give it bit more fuel
otherwise find someone with a proper air fuel meter and go for a drive
or put it on a dyno
|
|
|
