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Registered:
June 2003
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2JZ limp mode?
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Tue, 01 November 2005 01:15
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A bit of background first I guess. It's an early model 2JZ-GTE engine that has been transplanted. It's also running the factory auto ECU. It has a few little pieces like intercooler & exhaust. A very small amount of boost and some cam gears, but that's about it.
Is there any definitive way to tell if the ecu is in "limp home" mode? Like a fault code?
I'm trying to sort out why my fuel economy is so rotton. Approx 300 kms city driving per 50L tank, and that's not driving it hard.
It seems to rev cleanly and doesn't seem to be shy on power.
It doesn't blow smoke (except for the usual small puff when boost comes on).
Idle is a little rough, but it doesn't lag or choke when you stomp it in neutral from idle. The cam gears are almost undoubtably contributing to the rough idle.
Could adjusted timing on the cam gears be responsible for the bad fuel economy?
There's a whole arseload of moisture on cold start. It smells a little fuely, but I'm pretty sure it's mostly condensation. When I say a lot, I mean it actually sprays and dribbles out the exhaust, and forms a puddle on the ground.
Trailing throttle is a little poppy & rumbly, but not over the top. Doesn't seem to backfire. Just little pops. Fairly normal I'd say with the exhaust.
It has new plugs, new o2 sensor and good fuel.
Anyone have any bright ideas? Or are all 2J's this lousy on fuel?
[Updated on: Tue, 01 November 2005 01:17]
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| | Subject | Poster | Date |
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2JZ limp mode?
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joorsh | Tue, 01 November 2005 01:15 |
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Re: 2JZ limp mode?
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gianttomato | Tue, 01 November 2005 01:41 |
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Re: 2JZ limp mode?
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Manny | Tue, 01 November 2005 03:00 |
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Re: 2JZ limp mode?
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myne | Tue, 01 November 2005 03:19 |
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Re: 2JZ limp mode?
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BlackSupra | Tue, 01 November 2005 07:57 |
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Re: 2JZ limp mode?
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Chris Davey | Wed, 02 November 2005 01:05 |
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Re: 2JZ limp mode?
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joorsh | Tue, 01 November 2005 13:06 |
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Re: 2JZ limp mode?
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Norbie | Tue, 01 November 2005 23:16 |
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Re: 2JZ limp mode?
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justcallmefrank | Tue, 01 November 2005 23:21 |
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Re: 2JZ limp mode?
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joorsh | Wed, 02 November 2005 10:44 |
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Re: 2JZ limp mode?
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myne | Wed, 02 November 2005 10:48 |
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Re: 2JZ limp mode?
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joorsh | Wed, 02 November 2005 10:52 |
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Re: 2JZ limp mode?
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justcallmefrank | Wed, 02 November 2005 14:05 |
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Re: 2JZ limp mode?
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Alchemist | Wed, 02 November 2005 11:08 |
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Re: 2JZ limp mode?
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Norbie | Wed, 02 November 2005 15:03 |
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Re: 2JZ limp mode?
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THE WITZL | Wed, 02 November 2005 23:05 |
