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Faulty Crankshaft Position Sensor

D-G

By D-G,
in Victoria

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D-G Rising Star

D-G

Posted
Posted

So i have had an issue with this for some time now, but i really can't afford to fix it. New from Nissan cost $700~800 and then the mechanics cost would probably bring it to $1100~. He said (the mechanic) that you can try find a second hand one... but i really don't think that's a great idea...

So pretty much i am looking for a easy solution.

Problems that occur with it;

(On random occasions)

During idle the engine malfunction light will pop on, and so the fun begins.

Idle, revs drop almost to 0 and car will tremble profusely.

Noise change, sounds like its constantly coughing. (or the engine is flooding)

Slow down! The car will struggle to accelerate.

If someone knows of a person or business i may be able to see, preferably around South east i would be extremely grateful!

I have tried looking around, but usually its the same answer.

Otherwise its reasonably safe to leave it unfixed right? Not like it can really do any harm..

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PM-R33 Grand Master

PM-R33

Posted
Posted

Do you mean the crank angle sensor? CAS?

Just get a second hand one for $50-$100. Make sure you don't over tighten the bolts that hold it on because that can lead to failure.

Or if you remove the timing belt cover and drive the car like that, make sure you use a few washers to space out the CAS.

They seem to fail by putting to much force onto the spindle inside of it and it seperates from the wheel inside.

Easy way to test it is to remove it from the car and spin the spindle. It should spin very freely and not make any noise. If it is a bit ruff or feels like there is sand in it (it is actually metal shavings) and makes a bit of a grinding noise than it is definetely on it's way out. Once it fails completely you will not be able to start the car.

D-G Rising Star

D-G

Posted
  • Author
Posted

Thanks for the information! I will give that a go, no noise like the one you mentioned as of yet, and yeah crank angle sensor sorry. The mechanic had given me the wrong information.

Much appreciated :wub:

PM-R33 Grand Master

PM-R33

Posted
Posted

No worries man.

I had mine fail on me while at a friends place with a pissed of ex gf at the time. Car wouldn't start and I couldn't figure out why. Rage doesn't begin to describe that night.

So yeah, I realise how annoying CAS' can be :P

barney Rising Star

barney

Posted
Posted

do u know what the fault code is when the engine light comes on.? r34's have issues with coil packs, which could also be your problem, dodgy coilpacks in r34's bring up a ignition signal fault code. im guessing its a r34.

D-G Rising Star

D-G

Posted
  • Author
Posted

do u know what the fault code is when the engine light comes on.? r34's have issues with coil packs, which could also be your problem, dodgy coilpacks in r34's bring up a ignition signal fault code. im guessing its a r34.

It is an R34. Well the thing is i was told originally by two mechanics that it was the secondary coilpack. The little computer (the engine scanner) changed from the first scan.

The order of scan that detected fault:

Check Crank Position Sensor

Check Cam Position Sensor. (Faulty may effect performance).

I don't remember the fault code for the coilpack. I am thinking it was code 21? But not 100%

  • Like 1
V28VX37 Veteran

V28VX37

Posted
Posted

It is an R34. Well the thing is i was told originally by two mechanics that it was the secondary coilpack. The little computer (the engine scanner) changed from the first scan.

The order of scan that detected fault:

Check Crank Position Sensor

Check Cam Position Sensor. (Faulty may effect performance).

I don't remember the fault code for the coilpack. I am thinking it was code 21? But not 100%

Yep 21 is ignition signal i.e. coil packs.

I had a stuffed CAS with similar issues as to what you describe above. Mine cost around $500 from memory (parts and labour), they rebuilt it with parts from another CAS.

I'd certainly get it fixed, it's no good for the engine driving around with a malfunctioning CAS.

D-G Rising Star

D-G

Posted
  • Author
Posted

Just to update, this is my third mechanics results. Kinda seems like he is confident about it.

This is the scan:

Code001:

P132 IGN SIGNAL-PRIMARY

It is costing almost $2000 to fix this.

I was told to replace all the coils. After being dicked around twice before i am a little worried about this. So hard to find good mechanics these days... So only one is failing, i can see a upside to changing all 6. But $2000 for them feels a bit steep.

I will be going to another mechanic who is meant to be quite trustworthy. I guess the adventure continues.

I appreciate all the help guys.

Rekin Grand Master

Rekin

Posted
Posted

Just to update, this is my third mechanics results. Kinda seems like he is confident about it.

This is the scan:

Code001:

P132 IGN SIGNAL-PRIMARY

It is costing almost $2000 to fix this.

I was told to replace all the coils. After being dicked around twice before i am a little worried about this. So hard to find good mechanics these days... So only one is failing, i can see a upside to changing all 6. But $2000 for them feels a bit steep.

I will be going to another mechanic who is meant to be quite trustworthy. I guess the adventure continues.

I appreciate all the help guys.

$2000 for 6 coilpacks? wtf mechanic are you going to. Any import mechanic knows about Splitfire coilpacks which sell for $300-$400 brand new??

Stop messing around with dud mechanics and get over to http://www.revzone.com.au/contact-us or http://recustoms.com.au

/end

htial Grand Master

htial

Posted
Posted

What you describe sounds like a problem I had on my 33 with the CAS. Turned out to be a crack in the mounting bracket that would let the CAS rotate by 2掳 or 3掳. Putting your hand on the CAS and pushing it towards the cam would change the "note" in and out of tune. Bracket was $20.oo I think.

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