Think i have a faulty det sensor.

 

Im sure my car is going into saftey mode in all but the Turbo's. I have a boost controller which will take away saftey boost, but ive noticed that after a while the bottom end feels sluggish, seems you need to spool the turbo's for any power, whereas other time (usually when i just get into it) the car feels very responsive. Im guessing the det sensor is kicking in and mucking up the timing, deffo no det, my car used to saftey boost all the time before i installed the boost controller, but never any sounds from the engine. Should I just bypass the sensor? and can anybody do it for me as im crap at anything electrical.

 

Also problem number 2. My viscous fan seems to kick in way to early, driving along car sounds like a boing 747 being started up and its been pointed out that mu viscous fan is running. Now both my aftermarket water temp guage and stock temp guage show engine is running about about 70 degrees, so i cant see why fan should be kicking up? Could this and the first problem be related? maybe car thinks its hotter than it is and therefor retards itself?

Ohh and to double check i removed the rad cap (lot of pressure, aftermarket Greddy cap on a koyo rad) and stuck a mechanical temp guage into the water which also showed car was not running hot.

ok lets get this straight,your electric fan is coming on,dont get confused with the viscous!the viscous fan is permantly on due to it being belt driven of the waterpump pulley wheel,im guessing you mean the electric fan,in which case will be due to a faulty temp sensor yellow plug on top of front waterpipe,clean it or replace plug/loom and that should stop the fan coming on intermitadly,this may be retarding the timing as it thinks the engine is getting hot and causing the car to run poorly.This is why it takes time for the turbos to get up to efficancy due to the timing being backed off via the ecu

ok lets get this straight,your electric fan is coming on,dont get confused with the viscous!the viscous fan is permantly on due to it being belt driven of the waterpump pulley wheel,im guessing you mean the electric fan,in which case will be due to a faulty temp sensor yellow plug on top of front waterpipe,clean it or replace plug/loom and that should stop the fan coming on intermitadly,this may be retarding the timing as it thinks the engine is getting hot and causing the car to run poorly.This is why it takes time for the turbos to get up to efficancy due to the timing being backed off via the ecu

 

electric fan isnt on it the viscous, i know its on anyway but it seem to kick into an extra gear, when you tap the throttle, it was so loud at 1 point car sounded like a jet plane, seems as if it was running at full speed. dont know how many speeds it has but, if it is 3 and 1 is normal idle,it seem to run at speed 2 after about 10 mins and speed 3 for quite some time after i have finished driving the car hard. might just be a noisey fan but it deffo even looks like its running faster than it should. was fine before i installed the koyo rad.

electric fan isnt on it the viscous, i know its on anyway but it seem to kick into an extra gear, when you tap the throttle, it was so loud at 1 point car sounded like a jet plane, seems as if it was running at full speed. dont know how many speeds it has but, if it is 3 and 1 is normal idle,it seem to run at speed 2 after about 10 mins and speed 3 for quite some time after i have finished driving the car hard. might just be a noisey fan but it deffo even looks like its running faster than it should. was fine before i installed the koyo rad.

 

ok if it increases with engine noise then its your viscous,replace it and the noise will dissapear,same happened to my viscous on my old z ;)

cool cheers greg, noticed it was noisey tonight even when i only just got in the car. gonna replace it, just gotta figure out the loss of poswerproblem,it was fine tonight with cold dense air.

ahh think is sussed my car running too cool issue. Basically the post above is regarding my old silver Z. Well my current black Z has the engine out of my silver one and funny enough sounds like a boing 747. Due to the Viscous fan being on fill wack, with air-con removed and koyo rad, my car stuggles to get past the 1/3 mark on the guage.

 

So i think i need a new fan

lol, only took 2 years to work it out! glad you sorted it. i can only dream of having such a cool-running car

the engine was removed from the silver car about Sept 06 and the black car has been on the road for a very short time since. Should have changed the fan when the engines were out of the cars. yep it is nice the car running nice and cool, but think if all the power that pesky fan is robbing me LOL