What are the different sensors?
10-01-2001 | 11:16 PM
#1
Thread Starter
Supreme Member
iTrader: (1)
Joined: Jul 1999
Posts: 1,416
Likes: 23
From: Stavanger area, Norway
Car: 86 IROC Convt
Engine: 305TPI
Transmission: TH700R4
What are the different sensors?
Im currently swapping a lot of parts on my '86 305TPI, and during the teardown I've found a lot of sensors around the engine - but Im not confident which one is what, could someone help me out some?
1. Drivers side head (water temp?)
2. Pass. side by starter (knock sensor?)
3. Front of intake, small
4. Front of intake bigger
5. On top of intake (under plenum) near the center
I'd appreciate inputs on which is what, and also if any/all of these should be replaced while I have them out anyways.
Thanks a lot!
Ken
------------------
1986 IROC-Z Conv't
17x9.5 TT II's w/ 275/40x17's, BMR stb, Lakewood APR, Jamex 1.5" Lowering Springs
ChevyKen's Cars
Administrator @ ChevyWorld.net
1. Drivers side head (water temp?)
2. Pass. side by starter (knock sensor?)
3. Front of intake, small
4. Front of intake bigger
5. On top of intake (under plenum) near the center
I'd appreciate inputs on which is what, and also if any/all of these should be replaced while I have them out anyways.
Thanks a lot!
Ken
------------------
1986 IROC-Z Conv't
17x9.5 TT II's w/ 275/40x17's, BMR stb, Lakewood APR, Jamex 1.5" Lowering Springs
ChevyKen's Cars
Administrator @ ChevyWorld.net
10-01-2001 | 11:32 PM
#2
Supreme Member
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
<font face="Verdana, Arial" size="2">Originally posted by ChevyKen:
Im currently swapping a lot of parts on my '86 305TPI, and during the teardown I've found a lot of sensors around the engine - but Im not confident which one is what, could someone help me out some?
1. Drivers side head (water temp?)
Yep, for the temp gauge.
2. Pass. side by starter (knock sensor?)
Hmmn, my KS is hidden between the block and the control arm, kinda under the 4 and 6 plugs, IIRC.
3. Front of intake, small
4. Front of intake bigger
Ones the CTS (for the ECM) other is the ColdStart valve sensor. I've an '89, so can't tell ya which is which for sure, and my '87 intake is buried in the shop.
5. On top of intake (under plenum) near the center
I'm thinking the EGR temp sensor.
I'd appreciate inputs on which is what, and also if any/all of these should be replaced while I have them out anyways.
Thanks a lot!
Ken
</font>
Im currently swapping a lot of parts on my '86 305TPI, and during the teardown I've found a lot of sensors around the engine - but Im not confident which one is what, could someone help me out some?
1. Drivers side head (water temp?)
Yep, for the temp gauge.
2. Pass. side by starter (knock sensor?)
Hmmn, my KS is hidden between the block and the control arm, kinda under the 4 and 6 plugs, IIRC.
3. Front of intake, small
4. Front of intake bigger
Ones the CTS (for the ECM) other is the ColdStart valve sensor. I've an '89, so can't tell ya which is which for sure, and my '87 intake is buried in the shop.
5. On top of intake (under plenum) near the center
I'm thinking the EGR temp sensor.
I'd appreciate inputs on which is what, and also if any/all of these should be replaced while I have them out anyways.
Thanks a lot!
Ken
</font>
[This message has been edited by 8Mike9 (edited October 01, 2001).]
10-02-2001 | 12:09 AM
#3
Supreme Member
iTrader: (2)
Joined: Jul 2001
Posts: 1,823
Likes: 1
From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
#5 Is The MAT Sensor. Manifold Air Temperture Sensor.
------------------
86',88',89' IROC-Z, 350 TPI, 700-R4
94' Formula, LT1, 6spd
------------------
86',88',89' IROC-Z, 350 TPI, 700-R4
94' Formula, LT1, 6spd
10-02-2001 | 07:13 PM
#5
TGO Supporter
Joined: Jul 2001
Posts: 404
Likes: 1
From: Evansville, IN USA
Car: '89 GMC Pickup
Engine: 383 SBC Stealth Ram
Transmission: 700R4/VIG 3200
<font face="Verdana, Arial" size="2">Originally posted by ChevyKen:
Im currently swapping a lot of parts on my '86 305TPI, and during the teardown I've found a lot of sensors around the engine - but Im not confident which one is what, could someone help me out some?
1. Drivers side head (water temp?)
2. Pass. side by starter (knock sensor?)
3. Front of intake, small
4. Front of intake bigger
5. On top of intake (under plenum) near the center
I'd appreciate inputs on which is what, and also if any/all of these should be replaced while I have them out anyways.
Thanks a lot!
Ken
</font>
Im currently swapping a lot of parts on my '86 305TPI, and during the teardown I've found a lot of sensors around the engine - but Im not confident which one is what, could someone help me out some?
1. Drivers side head (water temp?)
2. Pass. side by starter (knock sensor?)
3. Front of intake, small
4. Front of intake bigger
5. On top of intake (under plenum) near the center
I'd appreciate inputs on which is what, and also if any/all of these should be replaced while I have them out anyways.
Thanks a lot!
Ken
</font>
2. Knock sensor, (near the oil pan rail?)
3. Front of intake, small = CTS, Coolant temperature sensor for the ECM
4. Front of intake bigger = Cold Start injector sensor/timer NOT for the ECM but to a power wire, then to the 9th injector between the tubes on the drivers side.
5. On top of intake (under plenum) near the center = One wire = EGR temperature sensor, two wires plugged upside down = MAT Manifold temperature sensor.
That's my *guesses* Hope this helps.
------------------
_ ___ _
SMasterson
Thread
Thread Starter
Forum
Replies
Last Post
HoosierinWA
Tech / General Engine
5
10-07-2015 10:15 AM
