Sweet! It still overheats!

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iNfamous240
Posts: 55
Joined: Wed Oct 22, 2003 1:56 pm

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its the sensor.... the sr20 sensor doesnt work well with the stock gauge and ecu. You can just get an after market gauge and let your ecu go crazy thinking that your car is over heating, so your engine wont be running to its fullest potential or you can just swap the s14 sensor and just install it in your sr and all your problems will be solve.


180fan
Posts: 7799
Joined: Sat Dec 14, 2002 12:16 pm
Car: 89 fastback

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or you could get a cluster off ebay for the s14 that comes off an s14 and pop in the cluster then. I see em around time to time, might want to keep an eye open or put up a want ad in the buy/sell/trade area. Just a thought.

xxtrizz
Posts: 525
Joined: Wed Oct 22, 2003 11:47 pm
Car: Cars, computers

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This is gonna be hilarious if it was the sensor the whoel time haha. Cause some of these guys have been talking about it since the beginning of the post.

iNfamous240
Posts: 55
Joined: Wed Oct 22, 2003 1:56 pm

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Hey pgt892 please let me know if i was right about swapping the sensor. Thanks and btw im pretty sure that thats the problem.

pgt892
Posts: 616
Joined: Wed Oct 30, 2002 4:34 pm
Car: 1997 240SX

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Well after bleeding out all of the air in the system like ItzGenX said, I got the overheating under control. It doesn't go past the middle of the gauge now. I didn't change out the sensor or anything, but I can't really drive the car a lot because the engine isn't at full power and I don't know why, the tach and speedo still don't work after redoing all of the wiring at the ecu, and the engine ticks like a mofo. Hopefully changing the plugs, O2, and the oil will solve some of these problems. Thanks to all that replied.

iNfamous240
Posts: 55
Joined: Wed Oct 22, 2003 1:56 pm

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pgt892, you have a 97 240? I was wondering what did you do with your ka after you swapped your sr in there? If you still have it, would you be willing to sell it.

Projex240
Posts: 926
Joined: Sat Jan 04, 2003 9:52 pm
Car: Dogs , My RIDE

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I wish I could have gottn on here sooner. The reason that bleeding it helped out is because some of the thermostats that people use do not have the little bleeder "button" on the top if it. The Nismo, and nissna replacement ones do. Without that little button on the top ring of the therm., its going to abe a total bit(h to bleed. When you went through changing all of that stuff, there was soooo much air in their. There are many ways to bleed a cooling system, but the one with cracking the bleeder screw is probably the easiest, and close to the most eficient. The absolute best way is to hook it up t a flushing system, and do it that way. But it costs bucks. I dont understand why everyone here was tlaking about the sensor. That wouldnt have a thing to do with the car overheating. If the sensor wasnt cooperating with the usdm gauge cluster, there wouldnt be a correct reading from the get-go. He mentioned that the car would be at a good temp for a bit, and then rise after idling or driving. That is sympotmatic of air in the cooling system, causing the thermostat not opening. Glad to hear you got it fixed.

pgt892
Posts: 616
Joined: Wed Oct 30, 2002 4:34 pm
Car: 1997 240SX

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iNfamous240 wrote:pgt892, you have a 97 240? I was wondering what did you do with your ka after you swapped your sr in there? If you still have it, would you be willing to sell it.
Yeah I have a 97, but the shop that did my 'install', if you want to call it that, Afterdark Tuning, either sold my KA or tore it down for parts. I wanted it back because it only had 62k miles on it, but I was paid for it, so oh well. But no, I don't have the KA anymore.

yellow_jacket
Posts: 1355
Joined: Mon Jan 13, 2003 4:43 pm
Car: 95 240sx

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Projex: The reason that everyone was talking about the sensor was because he tested the coolant temp with an external gauge and it was very cool. Plus, he never got good readings from the get go. In his first post he stated that it overheated from the get go. Also I din't see anywhere that he said he ever drove the car and it heated up. You are dead on about the little hole in the top of the thermo though. If people don't put that at the top, or get a cheap thermo w/o one it makes bleeding the system horrible.

Infamous: The temp sending unit for the gauge has nothing to do with the temp that the ecu sees. They use two completely seperate sending units.

Glad to hear that you got your car fixed.

iNfamous240
Posts: 55
Joined: Wed Oct 22, 2003 1:56 pm

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pgt892 wrote:Yeah I have a 97, but the shop that did my 'install', if you want to call it that, Afterdark Tuning, either sold my KA or tore it down for parts. I wanted it back because it only had 62k miles on it, but I was paid for it, so oh well. But no, I don't have the KA anymore.


o.. that sucks. Wish i would of known of this earlier... could of gave you a better deal then they did. Well thanks anyways.


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