Jump to content
SAU Community

Tps Issue?

mystery_kid

By mystery_kid,
in Engines & Forced Induction

 Share

Recommended Posts

mystery_kid Mentor

mystery_kid

Posted
Posted

i did a fair bit of work recently to my car including taking the intake manifold off

anyway it's all back together and running

except since it's been back together it's been an absolute peice of shit to start, i have to sit there turning it over for like 5 seconds and usually on the second go of turning it over it will eventually catch on and start (hot or cold)

it was doing this for a while but running fine otherwise

recently though i've noticed when coming on boost it's just been hesitating a tiny but kinda just after it's on boost the car will just kinda drop that power for a bit and then it keeps going

then this morning it really started having issues with coming on boost when it was a bit colder like 65 - 70º a couple of times i revved it up to boost slowly and it was like the turbo was sucking air but there wasn't anything else going on the revs kinda stopped just past 3k (i wasn't driving it hard but as soon as it got close to coming on boost it did this)

after the car warmed up it got a bit better but there is still a definite lack of power just after coming on boost

thanks

Link to comment
https://www.sau.com.au/forums/topic/304347-tps-issue/
Share on other sites
mystery_kid Mentor

mystery_kid

Posted
  • Author
Posted

yeah this wasn't a leak i don't think, i've driven off before without tightening up a clamp properly it definitely wasn't like that

it's been holding boost fine

it really odd though, it just wouldn't come onto boost and when it did the turbo would just suck air but the car wouldn't move haha

i will check that though, but i had been over that pretty well when i couldn't get the car to start after the work i did

Link to comment
https://www.sau.com.au/forums/topic/304347-tps-issue/#findComment-5040220
Share on other sites
Birds Grand Master

Birds

Posted
Posted

So boost gauge is showing a positive boost reading but the car doesn't move much when it comes on?

Does sound fuel related too, with your troubles starting. Perhaps engine is being flooded or starved both during starting and when boost coming on? Might help to check your fuel rail pressure.

Link to comment
https://www.sau.com.au/forums/topic/304347-tps-issue/#findComment-5040256
Share on other sites
mystery_kid Mentor

mystery_kid

Posted
  • Author
Posted (edited)

i replaced all the coolant hose

so i had the manifold off

it was replaced with new genuine gaskets

Does sound fuel related too, with your troubles starting. Perhaps engine is being flooded or starved both during starting and when boost coming on? Might help to check your fuel rail pressure

i didn't think of that, that would make some sense

how does one check their fuel rail pressure?

obviously i know to wack a pressure gauge on the end of the hose but that's not in the rail

also another peice of info:

when i did all the work i put it back together and had the fuel hoses on the wrong way and was trying to start the car, could this have f**ked the FPR?

Edited by mystery_kid
Link to comment
https://www.sau.com.au/forums/topic/304347-tps-issue/#findComment-5040264
Share on other sites

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

    • Kinkstaah
      Strange issue RB25DET wont start

      By Kinkstaah · Posted

      I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • Kinkstaah
      First time Skyline owner

      By Kinkstaah · Posted

      The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • Kinkstaah
      Chris' Toyota Mark ii JZX110

      By Kinkstaah · Posted

      I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • GTSBoy
      Chris' Toyota Mark ii JZX110

      By GTSBoy · Posted

      I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
    • GTSBoy
      Strange issue RB25DET wont start

      By GTSBoy · Posted

      Yeah, I would have said the same. It makes me suggest that there are other things wrong, such that the ECU is totally unhappy with the broken sensor. The only other thought here is that maybe it is shorted, which might cause a different issue to the typical "disconnected" sensor.
×
×
  • Create New...