Chevy86 IROC-Z

iTrader: (17)

Brandon, How you doing my friend? I think Im on to something but I need to know if its possible. Do you think that this temperature switch would be the answer for our EGR temp switch? From my finding of 136* F which is what the EGR switch actually grounds at (in my IROC), maby we can some how bolt this down somewhere onto our TPI intake manifolds so that it can react to the conductive heat.

The link is here so that everyone can read the details,,,,,

http://www.cshincorporated.com/produ...oducts_id=3790

jeff_blake

iTrader: (1)

hey guys go to this guy. http://cgi.ebay.com/ebaymotors/EXHAU...s#ht_633wt_798. there 51 bucks after shipping, but he has multiple. riht after i got mine he put his up. Enjoy!

firebird310

thanks, just ordered, will repost after i receive it........

jeff_blake

iTrader: (1)

yeah no problem man. took me 9 months to find that part. i ordered it on the 3rd, recieved it on the 6th. and im sure he has more, considering he keeps putting them up. sure there 50 bucks, but you gotta do what ya gotta do.

firebird310

yeah, ive been lookn bout 9 or 10 mos also, STOAKED........

firebird310

JUST GOT MY SENSOR, BRAND NEW, INSTALLED AND WORKS PERFECT, SO GOOD TO HAVE MY CAR BACK...... THANKS AGAIN FOR THE HEADS UP

transam85dudeman

Hawks needs to buy out this guy. This is great news that the EGR temp sensor is available. Because of the demand, id hate to see this price increase. For example, i once needed a pulley for my alternator. The junk yard heard that the pulley was becoming rare, (not true) junk yard wanted 105 dollars. I went across the street to a Tractor/Farming supplies, 5 bucks out the door. I needed a memcal one time, a rare parts store wanted 200 dollars. i got it for less than 50 at a GM dealership in Sunnyvale, CA. Sold it to me for dealer price, same with new york corvette dealership on the prom, 70 bucks....Ebay bought out paypal and naming rights. The douche running for governor of cali is the CEO of ebay, Meg Whitman. I despise this official and fear a sell out for profit if she becomes governor. But despite the fact a manufacturing plant refused to build these sensors, and GM discontinuing production of Pontiac, i can see our cars increasing in value and will become a Classic in the near future.

jeff_blake

iTrader: (1)

yeah man no problem, glad i can help! i just need to find time to put in my distributor, redo the vaccum lines and the motor will be almost good as new!

transam85dudeman

sweet, i need to do a complete overhaul. Engine transmission and differential. Im leaning towards for just rebuild of stock 126,000 miles original everything (i only put maybe 18,000 miles in about 6 years thats average 3k a year). but a big block and a T56 transmission sounds in enticing..

jeff_blake

iTrader: (1)

now... any idea's on that code 12? wont go away for the life of me.

all4u

I wonder what would happen if you would block off the EGR and then run the temp switch into one of the exhaust tubes, it shouldn't trip the CEL but would it work? Any ideas if something could be rigged like this. I still have my EGR and plan on keeping it, I run quite a bit of timing (38 degrees total) and would be afraid of possibly bypassing the EGR and getting a knock from detonation. Any one have a simple bypass method other then the one that is on here already? The more ideas, the better.

Chevy86 IROC-Z

iTrader: (17)

The temp of the exaust would enable the egr a heck of a lot sooner because the exaust. Also I haven't heard of a temp switch that can handle a 600* exaust temp. Another issue would be having a custom made port to insert the temp sensor (if one is available) into the header. There was a idea made by Chevy8588. Chevy8588 suggested a vacuum type delay switch. I think its page 2 or 3.

paterra1

somebody clue me in. I have a 91 Camaro with Speed Density. I am presently using an 89 Formula TPI in my Camaro. I do not have the Thermistor switch hooked up because I don't need it from what I understand. Am I right? If I am right, I can sell the one I have to someone who needs it for $30. Terry at paterra1 on thirdgen.org. or 661-943-1739.

Chevy86 IROC-Z

iTrader: (17)

You do need it. If you do yearly smog test, then of course you'll need it. You'll also help the engine last longer because when the switch grounds itself, it'll open the egr solenoid which allows exaust to enter the combustion chambers. If you don't allow exaust in the chambers, the upper cylinder can get really hot which can lead to detonation. Remember that detonation can occur even if you don't hear it.

paterra1

Whoa, I am glad you mentioned that to me since my engine is new and don't want to damage it. I cannot find the connector on the harness to plug it into. Can I find the pin on the ecu and see if there is a wire that should go to it? What a great guy you are to help me on this. Why are some guys saying I do not need it?

Chevy86 IROC-Z

iTrader: (17)

Because some just relay what they hear. They don't know exactly what the egr is or what it does which is bad advice practice. For example, I could of just said yes you do need it and hit reply but no. I gave you an explanation of what the device does. And others just don't care. Good luck. Ill help you out on the pinout in a bit.

fireburdluvr85

91 cars didnt use the egr temp switch.... believe it was 85-89 cars only

Chevy86 IROC-Z

iTrader: (17)

attention to detail is another factor. You must read the whole subject before you answer. he does have a 89 TPI Formula in his 91 Camaro. Again, attention to detail.

theNMBR27

I have a heated egr in my intake base on my 91 z. Should I ground the sensor or just replace the whole egr.

Chevy86 IROC-Z

iTrader: (17)

the egr comes without the temp switch. And the swith is almost impossible to find.

theNMBR27

I'm running spd density and my question was only if the heated egr will work properly in my car. If it doesn't make a difference I won't bother with taking it off.

paterra1

I did forget to mention that I put 88 vette alum heads on the motor also. I hooked up the small water connection which is for detonation (at least this is what I understand) and since the egr does not have the provisions on the heads between the intake ports I used the provision on the back of the intake manifold which is the older style (no cold start injector or ninth injector) which is susposed to be the way to hook it up and then from there it goes to the exhaust manifold. Hope I don't confuse anyone trying to help me, but I completely forgot that the whole picture must be explained in order to get the help I need. I hope someone can straighten me out on this somehow so I don't detonate my motor. But my mistake is I forgot to give all the facts of my engine. The tpi is from an 89 formula and the harness is from another firebird without the hookup for the thermistor temp wire even though the intake manifold I am using is with that thermistor temp and wire. The 91 Camaro manual I have doesn't show that I need the wire in fact the schematics call it a MAT sensor which I think is the sensor in the front of the intake by the heater hose outlet. Help!

Deven534

i have a 1987 trans am witrh 350 tuned port injection.... i need an egr temperature sensor for it...does anyone know how to get one????

paulo57509

I think you're SOL unless someone has an extra one and is willing to part with it.

There's an ebay seller that has been trying to sell one for a while. The auction pops up every few months or so. The only thing wrong with it is the wire and connector has broken off the sensor portion. The seller claims it will work if you solder the wire back on.

Oh, another thing; he wants a small fortune for it. IIRC, the first time I saw it listed, he wanted +$300 for it. And this was without the pigtail.

Deven534

some one emailed me a link to some and it lists 2 of them...i dont know which one to get for my car...why would they make 2 different ones? here is the link...i dont know if they have it or not..they say they do but i dont know...dont worry..the link is safe
http://www.theautopartsshop.com/auto+car-usa+parts/pontiac+firebird+egr-valve-temperature-sensor.html

Deven534

the egr system works fine...just the sensor is out, which is then setting off my check engine light...is it still fine to drive like this or no? when i shut the car off, then start it back up...the check engine light wont come on for abuot 2 miles, and then stays on until id shut in off and start again and go another 2 miles..is it ok for the car/engine to run with this sensor out?

Chevy86 IROC-Z

iTrader: (17)

Its not a sensor. Its a switch.

paulo57509

The part descriptions say the photos may be generic. But the one you need looks like the second one:

http://www.theautopartsshop.com/Sear...nd+PartDetails

Chevy86 IROC-Z

iTrader: (17)

You can get lucky if you hit the junkyards. Here's a greater idea, hit the junkyards and get a few. Then sell them. But don't get too greedy and sell them for $80 a piece. Before these pieces went discontinued, they where only $25 at the dealership. I would hate to see a fellow TGO member sell a little tiny switch for more than a Reman ECM from Autozone. Can you say price gouging?

paulo57509

Placed an order for three of them this afternoon. This evening I get an e-mail from them.

"Sorry....discontinued and not available at this time....."

Deven534

the egr system works fine...just the swtich is out, which is then setting off my check engine light...is it still fine to drive like this or no? when i shut the car off, then start it back up...the check engine light wont come on for abuot 2 miles, and then stays on until id shut in off and start again and go another 2 miles..is it ok for the car/engine to run with this switch out?

Deven534

and if i hit up some junkyards....would any egr temperature switches work from any other 5.7 tuned port injection 350 from a pontiac firebird/ trans am? mine is an 87...could i get an egr temperature switch from any other year but same engine?

Chevy86 IROC-Z

iTrader: (17)

Yes. Just as long as it has the same thread. Also what may change is the pig tail connector. The sest way to test if it is operating correctly is by running it under hot water. Connect one end to the "barrel" and the other end to the pigtail. Then switch the multimeter to continuity. Your gonna need a laser thermometer. The switch should ground itself at around 130*. To know when the switch grounds out, keep an eye on the multimeter. Once you see many numbers showing, then its working. If the numbers stay on zero and the water is scalding, then the switch is not working properly. Does my explaination make sense?

Deven534

yea i get it lol...but the egr system works fine...just the swtich is out, which is then setting off my check engine light...is it still fine to drive like this or no?? when i shut the car off, then start it back up...the check engine light wont come on for abuot 2 miles, and then stays on until id shut in off and start again and go another 2 miles..is it ok for the car/engine to run with this switch out?

Chevy86 IROC-Z

iTrader: (17)

IIRC, when the EGR Temp Switch grounds, it send a signal to the ECM that the intake manifold base is around 130*. When the ECM "sees" the 130*, it'll trigger the EGR Solenoid to open the valve and allow vacuum. The vacuum will then pull open the EGR Valve and allow exaust into the combustion chamber. The exaust will help reduce upper cyinder temperatures which reduces the chances of detonation (engine knock/ping), Another reason for the exaust into the chamber is to reduce NOX from the exaust. So if the SES light engages with the troublecode of EGR error, then you shouldnt have too much of a problem. Just know the fact that you will more than likely fail an emissions test.

jeff_blake

iTrader: (1)

87IROC-DAN61

Hello Deven534!!

Try www.compnine.com he lists his temp switches at $30.80 GM Part # 14087416 usually when his site lists an item, it's because he has them.

If you hope to find any in the junk yard, look at Camaros, Firebirds, and Corvettes with 305/350 TPI, as they were the only ones to get it!!

Best of luck finding any of those cars!!

You could try www.autopartauctions.com also, no promises, but he has them listed there from time to time!!

I bought three for $50.00 each in Dec 2009!!



P.S. The reason that the link provides two pictures is for the two different brands, the first picture is a Standard Motor Products brand, and it's a generic picture (I do believe that the picture shows one for an "import" car), the second listing is a Delphi brand, and it shows the correct picture of the part that you want!!

I have seen that the Corvette switch is a different part number due to a shorter wire!!

Dyno Don

iTrader: (7)

I have a couple of them....
$25 ea. shipped...PM me.

paulo57509

The EGR Temp Switch isn't used by the ECM to tell it to open the EGR valve. Rather, the EGR Temp Switch tells the ECM if the EGR has opened.

When the ECM commands (requests??) EGR, it expects to see the EGR Temp Switch close. If it remains open, the ECM will set the SES light.

An SES light that is on during an emissions test is typically an automatic FAIL.

Deven534

would you have a switch i could buy from you?

Deven534

.

Deven534

i am looking at one off of a 1989 Pontiac trans am with a blown 5.0 tpi....would that egr temperature sensor work for mine as well?

87IROC-DAN61

Hello Deven534!!

Yes!!



P.S. Don't break the wire taking it off!!

Deven534

ill be gentle lol

vetteoz

iTrader: (13)

Alive again apparently
$12.60
someone on another Forum just ordered one

http://www.theautopartsshop.com/Sear...nd+PartDetails

IROCmenace

iTrader: (1)

Awesome, thanks, just ordered two

IROCmenace

iTrader: (1)

I ordered them then got an email two days later that they do not have them in stock.

vetteoz

iTrader: (13)

Sorry about that.
***** me when they do that.
You ring , they say they have the part , you drive across town only to find there is nothing left on the shelf
despite what the computer says because nobody has updated the computer records

IROCmenace

iTrader: (1)

No big deal. I have an extra already. It was worth a shot. They did refund the money.

paulo57509

Or someone didn't take the two minutes to walk down the aisle to confirm it's on the shelf.