crankshaft sensor

[cwjo68]

So I have a 04, auto, Forenza, which was throwing a check engine light.. After reading the code I found it to be the crankshaft sensor, so I cleaned the connector where it ties into the wiring harness on top of the engine. So the check engine light goes away..

So have any of you replaced this sensor? and if so how big of chore is it? I managed to follow the wire to the accessory area but lost it there. I was just wondering what needs to be pulled off and where it connects at?

[Mario]

P/S Pump and A/C compressor have to be moved out of the way...

But you might also need the dealer ScanTool to complete the CrankShaft learning procedure.

You're lucky yours DID trow a Service light... mine was intermittent while hot and made the engine hard to restart. Took me 5 visits to the dealer to fix this.

[cwjo68]

Anyone know if I need the dealer ScanTool, like Mario was saying?

or you don;t think this would be covered under warranty?

[Zipper]

Warrenty, and I would asume its Powertrain, so thats the longer part of the warrenty

[tallkid]

Originally Posted by Zipper

Warrenty, and I would asume its Powertrain, so thats the longer part of the warrenty

ditto. when in doubt, take it to the dealer

[Doohickie]

Originally Posted by Zipper

Warrenty, and I would asume its Powertrain, so thats the longer part of the warrenty

I'm not sure how Suzuki interprets it, but I know for a fact that Hyundai's powertrain warranty does *not* include the sensors. It only includes the mechanicals.

[kinkyllama]

Originally Posted by cwjo68

So I have a 04, auto, Forenza, which was throwing a check engine light.. After reading the code I found it to be the crankshaft sensor, so I cleaned the connector where it ties into the wiring harness on top of the engine. So the check engine light goes away..

So have any of you replaced this sensor? and if so how big of chore is it? I managed to follow the wire to the accessory area but lost it there. I was just wondering what needs to be pulled off and where it connects at?

If it's the sensor then why do you need to follow the wire in the other direction?

Anyways I just got a code today for mine and need to replace it but my cars getting some body work and paint done for the next week and a half so I won't know anymore untill then.

btw a new sensor was around $68 from the dealer.

Originally Posted by Mario

P/S Pump and A/C compressor have to be moved out of the way...

But you might also need the dealer ScanTool to complete the CrankShaft learning procedure.

You're lucky yours DID trow a Service light... mine was intermittent while hot and made the engine hard to restart. Took me 5 visits to the dealer to fix this.

Are you sure? that really freakin sucks for a stupid sensor.

How did it act when it didn't want to restart? I took my car into my mechanic to see why the cooling fans weren't turning on, and what was draining the battery. I come back to pick up the car and I start it up (starts up perfect) bring it to the back of the shop to see if it threw any new CELs. Afterwards it wouldn't start, just cranked strong. Scanned the CEL again and crankshaft sensor is bad. After about 7 different attempts to start the car it finally does out of nowhere.

[Mario]

Are you sure? that really freakin sucks for a stupid sensor.

The learning part might not be mandatory, but they did it to be sure of the signal quality from the sensor I guess. With no codes, they weren't 100% that was the right part to replace.

How did it act when it didn't want to restart?

Most of the time, like this: http://pages.infinit.net/drf666/Problem.mp3
the rest of the time, it just was long to catch, like a car with worn spark plugs.

[SuzukiTech]

Removal

1)Disconnect the negative battery cable.
2)Remove the power steering pump, if equipped.
3)Remove the A/C compressor.
4)Remove the rear A/C compressor mounting bracket bolts and the rear A/C compressor mounting bracket.
5)Remove the accessory mounting bracket by removing the bolts.
6)Disconnect the crankshaft position (CKP) sensor connector.
7)Remove the CKP sensor retaining bolt.
8)Gently rotate and remove the CKP sensor from the engine block.

Installation
1)Insert the CKP sensor into the engine block.
2)Install the CKP sensor retaining bolt. Tighten:
Tighten the crankshaft position sensor retaining bolt to 8 N·m (71 lb-in).


3)Connect the CKP sensor connector.
4)Install the accessory mounting bracket with the bolts. Tighten:
Tighten the accessory mounting bracket bolts to 37 N·m (27 lb-ft).


5)Install the rear A/C mounting bracket. Tighten:
Tighten the rear A/C mounting bracket bolts to 35 N·m (26 lb-ft).


6)Install the A/C compressor.
7)Install the power steering pump.
8)Connect the negative battery cable.


Suzuki Tech2 is needed for the "Tooth Error Correction CKP"
When an ECM is reflashed, initialized or replaced, and drive plate of fly wheel has been replaced, follow these procedures to relearn the crankshaft position (CKP) system variation:
WARNING: To avoid personal injury when performing the TEC learn procedure, always set the vehicle parking brake and block the drive wheels. Release the throttle immediately when the engine starts to decelerate. Once the learning procedure is completed, engine control will be learned to the operator, and the engine will respond to throttle position.


1)Stay the gear parking or neutral.
2)Install the scan tool and select “TEC (Tooth Error Correction) LEARN” menu.
3)Start the engine with A/C off.
4)Keep the engine coolant temperature above 65°C (149° F)
5)Put the acceleration pedal above 4000 RPM until the fuel cut-off occurs.
6)Wait 10-15 seconds.
7)Fulfill this procedure again if the scan tool does not display “OK” message.
8)Turn the ignition switch OFF.
9)Turn the ignition switch ON and then clear the DTC code.

[kinkyllama]

Originally Posted by SuzukiTech

=5)Put the acceleration pedal above 4000 RPM until the fuel cut-off occurs.

Thanks! I couldn't find this in my service manual

Can you tell me how long it takes to replace the CPS acording to the manual?

Also what do you mean by "fuel cut-off" as I qouted above, the rev limiter? If not please explain.