any ideas as to why my tickover sits at 1.5K?

Sometimes (i think after I have switched engine off then restarted) it will sit at about 800 but 9 times out of 10 sits at 1500rpm.

I dont wanna adjust the base idle as if I knock it down to 800 then Im presuming when it would sit at 800 it would stall.

 

Cheers

I really dont know mate but mine used to do it, then I CHIPPED IT AND IT STOPPED.

 

JASE

Have a wiggle at the connector under the TPS when its ticking over high. Listen for changes. Un connect and check the connector pins for oxide there and re connect.

 

Cured it on mine

Jay

 

Mickey at Zworx fixed my idle (it was always around 1500) and it has been fine since, I went to him for something completely different (Nice chap) :D

any ideas as to why my tickover sits at 1.5K?

Sometimes (i think after I have switched engine off then restarted) it will sit at about 800 but 9 times out of 10 sits at 1500rpm.

I dont wanna adjust the base idle as if I knock it down to 800 then Im presuming when it would sit at 800 it would stall.

 

Cheers

 

check the voltage on the TPS - can't remember what it should be off the top of my head though sorry.

 

Rich

Prob TPS / Hard Idle Switch or sticky aux air valve.

Check TPS voltage ~0.44v and hard idle switch is on.

Also, check throttle cable not too tight.

Cheers - forgot all about the TPS - remember doing it now on my last un

same on my old LWB, sometimes it would idle realy high, other times it was fine. Switching TPS fixed it

what should the tick over be on

what should the tick over be on

 

I think spec is 800-1000.

 

Rich

If uou do want to try a IAAV, I have a spare one here,its a real pain to fit though so I would try the other options open to you first!

 

GaiJin

sorry to nick the thread jay :slap: But mine also does, not wise to these cars yet. can i ask what the tps connector is and where its located.

Any pics would be great :bow: :bow: :bow:

throttle position sensor - nearside of engine bay... little black box. There's an engine by numbers somewhere...

here you go http://300zx.co.uk/forums/showthread.php?t=26120

Thanks rich666 will give this ago and hopefully it will work :)

Noticed last night when cleaning connectors my ecu water temp sensor was badly corroded - this could poss have been cause too? - Cleaned that up and will find out today :)

still high this morn - looks like I need to adjust the TPS

Have you reset the ECU since you have cleaned the connectors?

no, will try that ;) You forget the most basic of things :D

i dont know if a ECU reset is nesscessary after cleaning connectors but i always do one..

here you go http://300zx.co.uk/forums/showthread.php?t=26120

 

Wow Rich, as a Zed newbie (and someone who has never dared mess with an enigine) that's just what I need.

 

Thanks!