1992 wiring schematics
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fatboybell
- Posts: 46
- Joined: Wed Jul 20, 2005 4:04 pm
- Car: 1992 Infiniti q45
1992 wiring schematics
Hey guys I have been trying to find a 1992 service manual,I have had no luck.All I really need is to see the sub cas wiring on the schematics.If any of you guys know where I can find a copy or have a schematic for a 1992 that you can photocopy a page of I would greatly appreciate it my car is dead in the water.thanks in advance.
Re: 1992 wiring schematics (fatboybell)
I have '94 schematics but I don't know if it'll be close enough. What is the "sub cas" anyway? Never heard of that.
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Q45tech
- Moderator
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- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
Re: 1992 wiring schematics (qsiguy)
The crank angle sensor has 2 separate ouputs: the 90 degree pulse used for cranking and emergency back up in case the 360 main output [a pulse every single degree of the 360 revolution of the exhaust cam] fails.
1 degree accuracy necessary if you are to have 0.5 degree accuracy of the entire 720 degree revolution required of a V8.
1 degree accuracy necessary if you are to have 0.5 degree accuracy of the entire 720 degree revolution required of a V8.
Re: 1992 wiring schematics (qsiguy)
The wiring diagram was recently posted in another thread.zerothread/181566
The '94 and '91/'92 schematic is the same.qsiguy wrote:I have '94 schematics but I don't know if it'll be close enough. What is the "sub cas" anyway? Never heard of that.
elwesso wrote:basically this is how it works... The CAS has the 4 pin plug... Sigal 1 is the 90* signals, signal 2 is the 360* signals... the other 2 are obvious.
If for some reason the main crank angle sensor dies, the sub crank angle sensor is still operational... Its a seperate plug for essentially the same sensor, except it only gives the 90* pulses.....
Basically you dont have to have the other one hooked up. Its a fail-safe part so that if the main cas goes bad (they hardly ever do), granny could still drive her Q to the dealer to get fixed... If the main CAS is working properly, the other connector is not even being used.
on the later VH45s (94+) they had a single (7 pin) plug... The cas no longer says NISSAN on it, rather hitachi if memory serves... It has the roundish connector..