Jump to content
SAU Community

After Market Aluminium Radiator + Engine Coolant Temp Sensor Help

Ecozile

By Ecozile,
in General Maintenance

 Share

Recommended Posts

Ecozile Contributor

Ecozile

Posted
Posted

Replaced radiator with an after market aluminium radiator. Engine coolant temp sensor is now unplugged.

This is the sensor that is on bottom right corner of the radiator, Page EN233 (page 253)

I would like to know

* What does ECT actually does (apart from telling ECU what coolant temp is)

* What is the effect on not having one?

* If I must have ECT connected

Thanking you in advance

mad082 Grand Master

mad082

Posted
Posted

i'm not sure how much that sensor actually does. i'm pretty sure the ecu uses the 2 wire sensor in the top radiator hose for the engine temp levels.

as for what effect the temp sensor can have (this is in general, not specific to the sensor you are talking about), the ecu alters both the fuel settings and ignition settings when the engine is cold. when the engine is cold it adds in more fuel. i'm not sure whether it advances or retards the timing. this will result in more fuel being used when driving as well as possibly making the car harder to start when warm (may not be noticably different though).

Moodles2 Grand Master

Moodles2

Posted
Posted

I think the bottom one is used to switch on the AC fan automatically once the temp reaches 90-95+, while the top one reports the engine temp to the ECU

Ecozile Contributor

Ecozile

Posted
  • Author
Posted

Can anyone confirm if bottom sensor is for AC fan only? if so i am not going to bother with it.

Otherwise I will have to drill shiny ali radiator to plugs one of these sensors...

Thanks to both of you for replying

BH_SLO32 Proficient

BH_SLO32

Posted
Posted

Can anyone confirm if bottom sensor is for AC fan only? if so i am not going to bother with it.

Otherwise I will have to drill shiny ali radiator to plugs one of these sensors...

Thanks to both of you for replying

Yes, only for the fan operation

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      Neil's R33 Gts-t Build

      By Dose Pipe Sutututu · Posted

      Let's hope that's not a copy pump either. There were so many copies of them back in the day.
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Damn it, I was at work last night, and stayed in a room there during the storm with the car outside, but undercover, I just went downstairs and well....there was a large steel locker that has come from some place last night, it wasn't anywhere I could see yesterday, and yeap, it landed on the fraking car....of course it did..... LOL So, I'll need to take it back for paint and panel, luckily it was only the boot that took the hit, so it could have been worse Serves me right for staying at work and getting on the cans with some of the boys
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Yeah, really happy with how it all turned out As for aftermarket lip, nah, I'm not really a fan for practically reasons on a street car that gets driven everywhere  I did have the full lower kit on my 2015 STI, but found the front lip scrapped alot, even at stock 4x4ish ride height As the NC sits now, with the lowest point of the car at 110mm, so just legal, some steep driveways and steep speed humps will still "just" scrap those little plastic OEM air dam thingies on the undertray just before the front wheels
    • Dose Pipe Sutututu
      Hypergear Turbochargers and High flow Services Development thread

      By Dose Pipe Sutututu · Posted

      Here's one I help build and tuned a decade ago, Garrett  GTX3071R Gen 1, T3 twin scroll 0.83 rear housing. Went from larger 272 cams down to smaller Tomei Poncams to help with the low end. S13 non VCT motor. Car was purpose built for the track, hence low down was the focus. Note the actual dyno chart shows lower boost, however the EBC and boost gauge showed 1.9Bar (Ignore the torque, I was young and didn't know how to set derived torque)  
    • hypergear
      Hypergear Turbochargers and High flow Services Development thread

      By hypergear · Posted

      I’m doing some side developments on SR20det S13 engines, its one my hobby cars used it to compare flow capacity of some smaller size wheels. SR20det is one of another JDM legendary engines I'm sure there are plenty of SR enthusiasts on this forum, I will share results some common turbo configurations here. a quick run down of what the car is: Wide body 180sx Type X with black top engine (blue). It has: Stock bottom end Haltech 1500 ECU 5-0 motorsports trigger kit Kelford SR20DET Beehive Spring with Titanium Retainers Kelford Cams SR20DET S13 188-B 268/272 Cams G25-660 Turbocharger in T2 .64 rear housing internally gated ARP Head studs MLS head gasket 1000CC ID injectors Walbro 450L Fuel pump Front mount cooler kit JJR’s 3 inches turbo back exhaust (its too short for the 180sx it had to be extended) Pump 98 fuel Hub Dyno tune So far made 270rwkws at 22psi full boost by 4500RPM. Engine is very knock limited hence a pretty bad looking top end. From previous experiences it seems like SR20dets are happier with bigger size turbine, some thing like a GT30 would make way better top end, but on same time response is lost. It won't be a problem with S15 VCT engines. I'll be testing alternative turbine housing, turbine wheel and possibly dump pipe options for extra flow to resolve the problem and of course E85 would resolve all the issues.            
×
×
  • Create New...