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Location:
Armidale
Registered:
January 2003
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Odd 1JZ behaviour
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Tue, 13 September 2005 07:04
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Well, I finally (!!) got the 1JZ into Cressida project running (thanks Sideshow). Didn't take long at all, once I actually started work on it in earnest.
Trailered it to the exhaust shop on Monday, and drove it home today. What a beautiful motor!! So smooth 
Anyway, on boost (not that I was really giving it much at all - it's still running a stock fuel pump) it makes a very distinctive slurping noise. (This may be normal for turbos/1JZ's - I've never owned one before!!)
But every time it hits boost, there is a very distinctive rich-fuelly kinda smell in the cabin. And it is instantaneous - almost like whatever it is is injecting the odour straight into the cabin (which is unlikely).
No sign of smoke or anything that I could see.
It is a bit hard to work out in the workshop as, obviously, it's not going to make boost in Park!
Any ideas, oh gurus of Toymods? 
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Location:
Canberra
Registered:
July 2005
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Re: Odd 1JZ behaviour
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Tue, 13 September 2005 07:26
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Sideshow mentioned he was heading your way. Even asked me which way would be quicker since I'm from up there, sorta.
I have no idea about your noise, but have two questions for you.
Is your overdrive light flashing after a minute or so of driving with O/D on?
How is your fuel economy. I finished my Cressida a couple of months ago and it was a JZX81 into MX83 conversion and something is wrong and it is drinking like a fish!
I'm drying some diagnostic stuff, but thought I'd see if yours is the same.
Cheers
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Location:
Armidale
Registered:
January 2003
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Re: Odd 1JZ behaviour
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Tue, 13 September 2005 07:32
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Yeah, we didn't pick it up at first, but the O/D flashes.
Sideshow reckons he has an answer (which sounds pretty feasible to me), so we'll let you know when it is sorted.
No idea about thirst yet - but it better be good!
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Location:
Warrnambool, Victoria
Registered:
July 2002
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Re: Odd 1JZ behaviour
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Tue, 13 September 2005 15:26
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My OD light flashes too. Then sometimes it goes off.
As for the smell, mine did smell for a while until the oil all burnt off the engine. Also do you have a charcoal canister fitted? Mine smelt like fuel without it.
Stock pump is fine for stock boost.
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Location:
Canberra
Registered:
July 2005
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Re: Odd 1JZ behaviour
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Tue, 13 September 2005 22:53
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Mine never smelt, but I have always had the charcoal canister. I just took the bracket and canister off the front cut and my mechanic screwed it into the right hadn inner guard.
Sidshow reacons that the OD flashes 'cause there is no secondary speed signal from the ABS. He has a box or something that he can fit for $250'ish. I will get it done, but its alot of money to pay to stop a light flashing.
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Location:
Newcastle, Australia
Registered:
March 2005
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 01:42
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I think to get rid of it you need to fit the MX83 transmission casing to the transmission that comes with the 1JZ, as the casing has the sensor on it. I'd love to fix mine flashing but for $250 I can't justify it.
I get around 14L/100km around town. 12L on the freeway. Replacing my thermostat helped a bit. I have just retuned my SAFC myself, and leaned out the low-load mixtures a bit, so we'll see if the economy improves. 1J's run very rich stock.
No idea about the petrol smell, other than maybe an exhaust leak?
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Location:
Warrnambool, Victoria
Registered:
July 2002
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 01:47
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Interesting about the box. So in theory, the traction control could possibly be made to work? As I understand it the Cressida is 3ch ABS and the JZX81 was 4ch (Not 100% on this, I know they are different.)
I said, 'who needs traction control anyway' but in the wet with the GF driving it could end in tears.
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Location:
Armidale
Registered:
January 2003
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 05:04
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Having no charcoal cannister probably explains the smell, if not the noise 
It was something I should have fitted before the engine went in, because it is in such an awkward spot. But I didn't realise until it was too late that the bracket is spot-welded to the firewall, not bolted on 
In theory, you could probably use a Jaycar 'speedo correcter' (~$45) to correct the signal and fix the O/D flash. But it works on outputting a percentage of whatever you put in, rather than Sideshows one which gives you a specific pulse division.
But if you wanted to spend the time sorting out what % gave you the desired divisor, it might be a cheaper option.
I understood that the ABS were all 3ch, but that the differences lay in the sensors and/or ABS computer. In theory, I think traction/ABS could be made to work, but I for one wouldn't have the time nor patience to do it! I assume it would involve getting an ABS computer from the donor car, however this is largely speculation on my part.
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Location:
Canberra
Registered:
July 2005
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 05:15
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The bracket is spot welded to the front cut, which should be empty now? I just used a cold chisel to take it off - came off clecanly. then drilled holes in the tabs and and the inner guard. Screwed it down with self tappers, and extended the lines.
$250 is alot of money for a flashing light and I do still need a propper exhaust!
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Location:
Armidale
Registered:
January 2003
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 05:26
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hehe - yeah, I was just about to head off to the front cut with the cold chisel now ...
I hear you on the $250 to stop a flashing light - that's why I suggested the $45 option (even better if you could borrow one to test with first - others on these forums have them)
Just as long as the blinking O/D isn't 1JZ code for "A sensor is munted, and I now plan to burn inordinate quantities of fuel until you do something about it" !!
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 05:50
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my OD light flashes as well. I don't really care though as it drives fine
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 06:04
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Doesn't the blinking auto light mean it's throwing a code?
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Location:
sydney
Registered:
March 2003
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 06:19
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u dont need to change the back of the gbox just because of the sensors
its easy to do b4 gbox is in car but with an electronic device u can bypass the abs ecu
one of the speed sensors goes from gbox to abs ecu to engine ecu
i do have a cure for it just not many people want to pay to get it fixed
anyway i know what the prob is and how to fix it just have to find the correct device to fix it
my crown 1uz had exact same prob with o/d light and i cured it with a device and i can sort of control when the gbox changes gears
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Location:
Canberra
Registered:
July 2005
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Re: Odd 1JZ behaviour
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Wed, 14 September 2005 23:26
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Yeah, what he said...
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Location:
Armidale
Registered:
January 2003
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Re: Odd 1JZ behaviour
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Thu, 15 September 2005 06:25
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Yeah, well, I have no choice but to pay the extra to make das blinkenlight go away.
I'm actually building the car for my old man (75 yr old closet hoon, who'd probably rather die than be seen at a bowls club). So everything has to be exactly right - including no weird flashing lights on the dash.
That's why I got sideshow on the job
But none of this explains this weird slurping noise. Seriously, it sounds like someone using the vacuum cleaner to empty the bath. Or do all turbos sound like that? 
(And I can't believe I participated so willingly in the hijack of my own thread!)
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Location:
brisbane
Registered:
December 2004
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Re: Odd 1JZ behaviour
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Thu, 15 September 2005 07:36
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why dont you just take the bulb out?... simple fix you can always tel when o/d is on anyway and by the position of the switch
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Location:
Canberra
Registered:
July 2005
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Re: Odd 1JZ behaviour
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Thu, 15 September 2005 23:18
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Thanks for your particitpation in the hijacking Baby Z. A good little conversation.
What sort of induction plumbing are you using before the turbo? Are you running the standard pipping from the turbos to the intercooler and then to the intake manifold?
Mine has the standard pipping from the turbos and to the single intake point above the dump. Then a piece of plasic pipe and a HKS pod. I can hear the sucking of the intake and the turbos spooling up but no vacume cleaner in a bath 
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Location:
Armidale
Registered:
January 2003
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Re: Odd 1JZ behaviour
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Fri, 16 September 2005 08:44
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| 1JRocket wrote |
Thanks for your particitpation in the hijacking Baby Z ... What sort of induction plumbing are you using
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No worries - anything to drag out the gems of info on the 1JZ/Cressida
Absolutely everything on this machine is standard at the moment, including all the inlet --> turbo --> intercooler --> plenum plumbing. Using the stock JZX81 airbox with a new Toyota 'paper' element filter. (I also have the HKS foam element for it, but it needs new foam as it has disintegrated.)
I am quite prepared to believe that the noise is normal, but judging from the noise in the cabin (which is, as you know, normally very quiet) it must sound pretty cool from outside Not that it is particularly loud, just very different!
| berad wrote |
why dont you just take the bulb out?
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That would fall into my category of not being exactly right . Considering my "customer", I want the car to look, feel and operate just like it would have done from the factory - had Toyota ever had the sense to send their real cars to our market 
[Updated on: Fri, 16 September 2005 08:59]
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Location:
sydney
Registered:
March 2003
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Re: Odd 1JZ behaviour
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Tue, 27 September 2005 22:29
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hey 1jrocket
will u still be coming up this way to fix yr o/d light
i sent babyz a signal adapter but it didnt fix the prob
so i need a car to do tests on to see what signal it needs
or if anyone has cressida in sydney with same prob email me
thanks
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Location:
Armidale
Registered:
January 2003
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Re: Odd 1JZ behaviour
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Sun, 02 October 2005 09:44
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Well, I fitted the charcoal cannister, and that has significantly reduced the fuel smell under boost. Not completely gone, but now down to reasonably tolerable levels. And it seems to be improving with driving, so maybe the cannister needed to be 'run in' again or something ...
New Walbro 255 fuel pump fitted today, too. Noisy little sucker
Still working on the flashing O/D, but we'll beat it ... then I can reassemble the dash and it'll be finished!
For now ...
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Location:
Canberra
Registered:
July 2005
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Re: Odd 1JZ behaviour
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Thu, 06 October 2005 06:24
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I'd love to come and get it sorted sideshow, but I'm os till the end of October.
The car is using heaps of petrol, so I have to sort that out, but once that is done I would love to come up and get the light sorted. If the Armidale guy can wait that long...
Maybe a Saturday morning?
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