Coolant temp sensor

[detroittiger85]

Can anyone tell me where on a 2001 saturn 1.9l SOHC the coolant temp sensor is. i just put this engine in my 1992 sl1 and there isnt a hole for the sensor, on my 1992 engine its located just under the upper radiator hose on the cyl. head, but the new engine doesnt have it. i'm thinking about t'ing off the overflow port just above the upper radiator hose, or if i have to drill and tap a new hole where the old one should be. if anyone can help me from making mistakes please do so thanks, email me at [email protected]

[peppermrj]

Are you trying to use the computer from the 92 with the 2001 engine? I thought you had to swap out the engine and the computer together.

[sierrap615]

91-95 engines used two coolent temp sensors, a one wire sender for the gauge and a two-wire sensor for the PCM. 96+ models use one sensor for the PCM, the signal for the temp gauge is provided from the same sensor thru the PCM.

identification - http://www.saturnfans.com/photos/sho...p/photo/19837/

your options are:
1. leave the gauge disconnected
2. drill and tap a hole-http://www.saturnfans.com/forums/showthread.php?t=39777&page=2 see bottom of page.
3. tee into the deaeration hose with a 1/4" fitting

[detroittiger85]

I swaped the 2001 manifolds with the 1992 manifolds lucky for me they just bolted right up, so instead its running like a 1992 instead of a 2001, i did this because i would have had to convert to obd-ii which would have been a whole truck full of melons, for me it was just easier , i am not looking to get any performance out of it but just a good cheap car, but mine is a SOHC, i dont know what your application is or if its a DOHC or what but mine worked great.

[detroittiger85]

i got an idea on how i'm gonna do it, i think i'm just gonna cut the upper radiator hose and fit a piece of galvanized pipe or even aluminum pipe into the hose and clamp it in w/ 2 hose clamps, then just drill and tap the pipe in the radiator hose.......ingenious i think and i dont have to risk messin up my new engine if i tap a bad hole.

[detroittiger85]

i have parts to that green sl1 in the link if u need , i have manifolds even an unused head gasket, basically one whole engine w/ bout 78,xxx miles, and another with about 180,000 miles, if u need any parts let me know. i also have both manifolds from the 2001 engine that i didnt use if you or anybody need them, again all my parts are all off a SOHC 1.9l engine

[sierrap615]

umm detroit, you may have a problem, the toner ring on the 92 and 01 is different. The reluctor for crank position is 10* different. expect your timing to be advanced. if you can check with a timing light and a scantool(accual vs computer) it may help you confirm if this is a problem. but the good news is the general agreement amung the performance tuners is the stock timing is "anything but advanced". its more the people that use the 91/92 crank with later PCMs that have a problem. if it does become a problem try a 94 with CA emissions or a 95 PCM(you will also need the wiring harness)

what did you do with the EGR?

what parts do you have? do you have a spare manual transmission?(hopefully from the 01) does the spare engine run? any other good parts?(i need quiet a few)



referance
http://www.turbosaturns.net/forum/viewtopic.php?t=19123

[detroittiger85]

Originally Posted by sierrap615

umm detroit, you may have a problem, the toner ring on the 92 and 01 is different. The reluctor for crank position is 10* different. expect your timing to be advanced. if you can check with a timing light and a scantool(accual vs computer) it may help you confirm if this is a problem. but the good news is the general agreement amung the performance tuners is the stock timing is "anything but advanced". its more the people that use the 91/92 crank with later PCMs that have a problem. if it does become a problem try a 94 with CA emissions or a 95 PCM(you will also need the wiring harness)

what did you do with the EGR?

what parts do you have? do you have a spare manual transmission?(hopefully from the 01) does the spare engine run? any other good parts?(i need quiet a few)



referance
http://www.turbosaturns.net/forum/viewtopic.php?t=19123

Sierra: your most likely right about the timing, i do have a check engine light that wont seem to go away, i didnt know this, but if it is running at 10 degrees advanced what could happen, i'm not too familiar with saturns, just the oldschool v8's i know i gan get bad gas mileage, but could it damage the engine, and also is it possible to change the reluctor ring and how diffulct is it. i mean i got the coolant temp sensor to work fine and the car cycles normally and doesnt overheat, i even got to take it around the block for the first time yesterday, to me everything seems to be operating normally, i havnt driven it enough to know if its using way too much fuel, i have a 93 parts car, will that pcm work also , i'de think not if they are physically interchangable, and is there anyway to adjust the timing maybe to retard it, also do u know which cylinder the 91 engine is timed off of, so i know which wire to connect the timing light off of. if you think i might damage the engine in anyway please let me know so i dont do so, i cant hear any knocking or anything to the physical ear, but it could be so tiny that its undectable. i really hope i didnt mess up anything. i mean i do know my way around a car, i just graduated from an auto school in ohio recently, so i am trained, about the parts i have available, i have the original 1991 1.9sohc engine that came out of my project car w/ 194,xxx miles that has the matching auto tranny the enging has a broken timing belt, also i have the sohc 1.9l out of my 1993 parts car w/o the auto tranny, sorry no manual transmission here, i do have various other parts off the parts car but it might not be worth the hassel , it would be easier to go to a junk yard and just hunt for parts. please let me know if i should be doing anything to the timing, whats the stock timing set at on a sohc saturn from 1991, just so i know how much its off. As for the egr valve i just used the 1993 intake manifold since they are the same, so its the older diaphram style, i do have both the 2001 intake and exaust manifolds, fuel rails and injectors w/ the injector harness if you need them also the linear egr is still attached to the manifold, these 2001 parts only have about 19000 miles on them, again they are SOHC model only. thanks for all your help. reply back asap so i can figure out what i need to do to my timing, i say this because i m moving on the first ant i wont have the space to work on this thing, thanks bro for ur help

[sierrap615]

Originally Posted by sierrap615

if it does become a problem try a 94 with CA emissions or a 95 PCM(you will also need the wiring harness)

^^^ignore this, it only applys to the DOHC, my fault^^^^

to pull the codes - http://www.differentracing.com/tech_...diag_info.html

for the timing, it is not adjustible(i know one guy who could reprogram it). to check the timing, the 1.9 isn't designed to really check timing, since it is not adjustible. to check the timing you need to make the marks yourself.

http://www.saturnfans.com/photos/sho...hp/photo/7662/

see the little notch at 4 O'clock? not the keyway, the notch on the outer part of the pulley. mark the outer edge of the pulley at that point with a sharpee or whatever. that is zero degrees TDC. there should be a small dimple on the timing cover right above the pulley, thats is your needle/pointer/whatever you call it. hook the timing light to cylinder 1(nearest timing cover). start the engine and enter field service mode by jumping ALDL pins A and B - just like you did to pull the codes with the engine off. timing should be zero normally, with yours it should be off 10 degrees. then exit fleid service mode and check timing. steady = good, jumpy = bad. if it is steady and the car runs fine(no knock no detination good power ect) you should be safe for awhile, 10 degrees advanced isn't bad (is it? i don't work with timing much)

for the EGR - i didn't relieze the SOHCs had the EGR on the intake manifold, DOHCs have them on the head, and a vaccum EGR will not fit a linear EGR head.

you can not adjust the toner ting, its part of the crankshaft.

if timing is a problem your options are as i see it:
1. replace your crankshaft with a 91/92
2. swap the PCM and wiring harness(also note the pinouts for the gauge cluster is different and will need swaped or rewired)
3. talk to BBB on turbosaturns.net about reprograming your computer

if timing is a problem