What is this sensor?
Thread Starter
Instructor
Joined: Mar 2005
Posts: 157
Likes: 2
From: Fayetteville Ga
What is this sensor?
I feel like a dunce for asking, but what is this sensor pictured? There are so many similar looking sensors I loose track of them/ can't remember all the acronyms. The plastic housing for the quick clip is missing. So I thought I'd go ahead and replace it.
Drifting
Joined: Mar 2005
Posts: 1,923
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From: GA
Originally Posted by Flyingboy
9th injector, is that the cold start injector?
Thread Starter
Instructor
Joined: Mar 2005
Posts: 157
Likes: 2
From: Fayetteville Ga
Originally Posted by Dynabob
Not to hi-jack the thread, but which year models use the 9th injector? Is it on all L98's?
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
85-88 had the Cold Start Injector (CSI) controled by the Thermo Temp Switch.
Is your coolant temp sensor messed up? I can't see the pins on it. I haven't looked at mine in a while, so I can't remember what it actually looks like with the connector off.
Also keep in mind tha the L98 has two of these coolant temp sensors. One (that one) is the one that the ECM uses for its calculations. The other one (in one of your cylinder heads) is used to display the temperature on your digital dashboard.
Is your coolant temp sensor messed up? I can't see the pins on it. I haven't looked at mine in a while, so I can't remember what it actually looks like with the connector off.
Also keep in mind tha the L98 has two of these coolant temp sensors. One (that one) is the one that the ECM uses for its calculations. The other one (in one of your cylinder heads) is used to display the temperature on your digital dashboard.
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Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
with 'BOGUS' it IS a coolant Temperature sensor.[Everyone else seems to have gone way off topic!!!]
PS; DONT feel silly in asking - I asked the SAME thing about 18mths ago!
Get a replacement, unscrew the old one and apply several wraps of teflon thread tape or better yet as I did; apply a film of pipe sealant or equivalent to the thread all round and screw it back in...Not TOO tight, but firm. You'll find I think (as mine was) that a new wiring connector comes with the GM replacement.
PPS to others; L98's have a cold start injector; it's not a '9th injector' as it serves one purpose only.
Last edited by smacko; Oct 13, 2005 at 12:37 AM. Reason: PS
Instructor
Joined: Dec 2004
Posts: 176
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From: Oakland CA
Originally Posted by smacko
Get a replacement, unscrew the old one and apply several wraps of teflon thread tape or better yet as I did; apply a film of pipe sealant or equivalent to the thread all round and screw it back in...Not TOO tight, but firm.
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Originally Posted by RatC4
Be careful with teflon tape if the sensor grounds through the threads. I have found that it can act as an insulator and make it appear that the sensor is not working.
No probs with mine anyway, using the pipe cement paste, so just incase it IS probably better to use that than thread tape.
