I got an idea. the EGR Temp sensor works by the temp of the intake manifold right? So why can we modify a 1 wire temp switch such as one that is used by a temp switch fan, such as the one below. As the coolant gets hot, it will then ground the switch, tricking the ECM into that the EGR temp switch is being grounded. On my water pump, there is a plug. All I got to do is screw it out and install a temp switch there. Is it possible Brandon?

 

Well, my question is, does the 2 Different Temp sensor grounds out at the same temp? If NOT, then I don't think it would work!

Ex. If the EGR Temp sensor grounds out at (lets say) 100*, and the fan switch grounds out at 160*.....Thats a difference of 60*, that maybe too big of a diff for the ECM to run the car properly!

And the lowest temp value Fan switch I've seen is Hypertech's Cooling Fan Switch, 160*.

 

Well the ER Temp sensor has inside a small flexible needle. Now when the temp rises via intake manifold, the needle begins to curve (until it make contact with the EGR Temp housing case) with heat just like the little flasher that is on the christmas lights. Now the temperature switch that screws in the cylinder heads grounds itself when the coolant gets at a certain temp which completes the circuit and the radiator fan turns on. But instead of "turning on" the radiator fan, it would ground itself just like the EGR Temp Switch. So it would be acting like the EGR Temp switch, i.e. temperature activated. Does it make sense?

 

what if somebody made up schematic on how to make your own egr temp. It wouldnt be that hard. An after market adjustable thermostat thats usually made for the fans that usually mounts in radiator's fins location. one could drill the center of just some bolt that happen to have same type of thread as the egr, and somehow feed the sensor in, tack weld it into place or something, and hook up the aftermarket fan relay itself can be used if modified to ground out. when testing the probe/temp sensor, it could be fine tuned to specific temps. and then could be screwed in the same threads in the egr temp sensor location. . its works in theory not even much headache than being turned down by everybody who used to sell egr temp sensor..

 

Chevy8588 came up with a good blueprint. Checkout post #53

 

Since you don't have emissions testing anymore and you stated at the bottom of your post that performance and driveability are your top priority, Option #2 is your best choice, and it's not hard to do at all. Purchase or make your own EGR blockoff plate, plug the EGR vacuum port that's on the underside of your throttlebody, and have EGR function switched off in your chip. EGR has zero effect on performance, so Option #3 is pointless if you don't have to mess with emissions testing anymore. P.S. Hey Paul, obviously you can disregard pretty much the whole bulk of my post. Somehow I managed to read your post that I quoted here that was on page 5 of this thread, and managed to not notice all of page 6! Lol. Oh well, I still wouldn't bother with the hassle if you don't have to be tested. For those that still need that sensor, I truly feel for them!

 

Hey Pat Hall, thanks for taking the time too post! Your idea of Option #2 is pretty much the same as 55Mikey55's idea! He says he got the idea from a TPI engine swap manual.

My EGR temp sensor is STILL working fine, and I was able to order another one from Ebay as back up. I do plan on keeping my EGR system together...AS LONG AS I HAVE PARTS!!!! Its just nice to have a Plan B.

But sooner or later, that Ebay part will not be availible for ever, I just don't want to discard anyone's idea without US giving it a chance, and at least allow those who are in the trade and or, those who are good with a wrench, to dissect the idea and prove as best as they can as too why, or why not, it would work!

 

CFCs haven't been used in cans since the 1970's. Nonissue.

 

Bump.

 

Bump

 

Chevy86 IROC-Z, this type of idea I believe was mentioned much earlier in the thread, and the problem is to find another temp switch that grounds out around the SAME temp! A fan switch will ground out, but at a much higher temp then compared to the EGR temp sensor.

transam85dudeman had the idea of using a after market adjustable thermostat. In theory, it sounds nice, but, would it work? And could it be adjusted to a temp close enough to the EGR temp sensor????

 

And, if you are willing to do all this work, then you might aswell use Chevy8588(Brandon) idea of using the vacuum lines! Which, to me sounds easier to do.

 

Ohh. I didnt catch that. Well, let me find an A.C. repairman and Ill ask if he can shoot a lazer temperature meter to see how hot the EGR valve is at idle and after moderate driving. i dont know how long it'll take but I'll put in some effort. Once i get the temperature reading, I'll do some searching for a coolant temp switch that has a temp range of my recorded results. Sounds like too much hastle but I'm determined.

 

try testing it like the t stat (water boiling), only attach a meter and test for continuity and when it beep record the temp using a candy thermometer. (btw infrared thermometer lazer is at harbor freight, 7 bucks i think on sale) great for when you upgrade the a/c

 

You made my day. Thanks bro.

 

this switch is made to sense the flow of EXHAUST gas, the intake manifolds on our cars have coolant in them so expect them to be around 200* at any given time, I would suspect then that this switch grounds probably AROUND 250 - 300*

 

Do you think my idea would work Brandon.

 

Once again, I think what Chevy8588 is getting at basically is that there might be too much of a temp difference between the 2 TYPES of sensors.

 

well considering that there is no engine in the work designed to run at 300* or more? I would say no. BUT you are not far off from the path that would lead us to our goal. why? because finding the temp range at which the switch closes is the first step to locating another. there are hundreds of thousands of machines out there that use thermo-switches and plenty of manufacturers that manufacture them industrially, so we need the temp range, and the thread size... though i WANT to say the threads are 3/8' NPT, but that may not be the case.

 

I agree. In a few weeks, Im going to buy a set of 22 lbs Bosch III fuel injectors. I'll pull my EGR Temp sensor and test it out to see at what temp the switch closes using continuety (I know, I spelled it wrong). Then I'll search for an appropriate temp switch that will operate with engine coolant. I just hope that my wife dont get to jealous for spending more time in my Camaro than with her. Ill let you guys know if I can achieve, or cannot achieve my mission.

 

Does anyone have a factory EGR valve that is not currently installed on the car? I was looking at the replacements Autozone sells and the temp sensor hole is drilled and tapped all they way through the mounting flange and I'm wondering if this is correct. The last time I had one off the car the factory hole did not go all the way through and I'm wondering if the replacement part is built wrong and if that would impact the operation of the temp sensor.

 

The threaded hole for the EGR Temp Sensor does not go all the way through to the exhaust port on OEM, Delco and Standard Ignition brand replacement valves.

 

Would get hot quicker, not a bad thing, enables EGR sooner.

 

But wouldn't it cut down the life of the sensor sooner?

 

no its just a heat sentive needle inside the switch, heat should not effect it at all

 

Hello Chevy8588!!

Seems kind of funny that a heat sensitive needle shouldn't be affected by heat?????

 

smart a$$ lol, the sensor is going to reach the high temps of the exhaust gass flow no matter what you do, it is made to, its heat sensitive, but not heat damaged, it's life should not be degraded bey reaching temperature quicker.

 

Hello Chevy8588!!

I thought that I'd get you on that one!!

I knew what you were refering to, but I just couldn't resist!!

 

hence why I called you a smart a$$, i knew you got it

 

Hello Chevy8588!!

It was just sounding funny to me, I even read it out loud, and then I couldn't stop laughing..........sorry about that!!!

I must have a case of the giggles, or something!!

Any ways, I don't mean to sound harsh, or cruel. I just saw some humour in it!!

Thanks, that made my day/night!!

 

lol, no harm, im calling you a smart a$$ with the utmost respect for humor, why? cuz I would have said the same damn thing lol

 

Hello Chevy8588!!

Well then, you know where I'm coming from!! Funny how these electrons can get all messed up, and not mean what we want!!

 

Well guyz, I just recently replaced my OEM Injectors and slapped in some re-designed Bosch III's 22 LBS Injectors. Very nice. As for the EGR Temp sensor, mine broke right at the wire/base connector. So Im going to have to think about how Im going to either solder, or somehow get the wire to mount inside the hole of the terminal. So in other words, I cant test to see at what temp the switch grounds itself. As soon as I figure this problem out, Ill post my results.

 

sweet

 

hey andy, them type 3 22 pounders makin her run any better?

 

What is this, a group huge? LOL

HAHAHAHAHA.....Soooooo funny guys. I'm sending both of you guys dirty looks

 

Hello y84pauloflondon!!

It sure was a group hug, where were you????

 

Hey Brandon, how have you been? I'm still waiting on my Reman tranny. She definitely feels smooooother. As for performance, this may sound confusing,,,, while the IROC is in motion (5 MPH) and in 1st gear, I can punch it down and make the tires . Either on pavement, or smooth cement, the tires . With 19 lbs, I couldnt do that. Also, she turns on quicker whether she is hot or cold (as in around 40 degree mornings). One thing that I did notice is that my new Bosch III's injectors click and it is noticable with the hood open, but my wifes 2003 Ford Expedition (I know, I know. How can me and my wife have rival makes ) does the same, as in the F.I. clicking. performance wise, yes, she does get up and go a tad bit quicker. Other than that, Im .......

 

arent you glad you went with the 22 lb ones? :P yea my mother has the same truck, hers tick, as does the 19 lb/hr type 3's I have in my cadillac, its just the pintles actuating, though it IS a bit more noticable on batch fire cars rather than sequential like my caddy

 

oh yeah my friend, Im very happy. I thought that they where going bad until i heard my wifes Expedition. Then I felt like a .

 

Does this work? $12

http://cgi.ebay.com/ebaymotors/212-3...item3efd21c0e1

 

I checked the part number (14087415) in google and I found no match to our Camaro's. BUT, I think they are the same. What do you think Brandon?

 

Hit or miss really, all one can say it try it, for 12 bucks it's no massive loss

 

Yup. In this case, all I can say is,,,,,,"Think with your dipstick Jimmy."
Just kiding. It's a swing in the dark. It falls into the same year range, and it does the same function, but it may ground out at a different temp.

 

If you look at the compatibility listings in the ebay adv it shows 86-89 Vette and previous posts have the Vette the same as the F-bodies ?

The seller previously had one listed for a F-Body (GM # 14087416 )
http://cgi.ebay.com/ebaymotors/ws/eB...d=270534835463

and the only visible difference was the clip on the wire

 

True. Isnt the block the same, but the heads and intakes different? Not familiar with the differences between the Vette and Camaro's power plants. All I know about the differences are that the Camaro's have the dizzy cover as plastic, while the Vette has aluminum dizzy covers in the TPI's setups.

 

vettoz, if you buy it, let us know if it's compatible or vertually the same as the Camaro's.

 

Vette has the EGR switch in the crossover tube from exh manifold because no heat riser in heads

 

Hey Guys, I think Vetteoz found our replacement!!!!!!

 

Caution!!! the item is described as new on ebay "Unless otherwise noted", but,,,,, The item condition is BLANK. but if you look it up on google shopping, (http://www.google.com/products?hl=en...7415&scoring=p), it'll state the item as used. I see false advertisement. ALSO, if you check the return policy, there is none as in not specified. So if you make a purchase, you might get a used one,, but even worst, all sales may be final. I'm going to contact the seller first to see what he says.