Jump to content
SAU Community

Flashing Engine Light And Slow Speedo

series2r33

By series2r33,
in General Maintenance

 Share

Recommended Posts

series2r33 Collaborator

series2r33

Posted
Posted

I've had my car dyno tuned not to long ago and it was running fine, now im having trouble with running my car at 10 or 14 psi without the engine light flashing. This was happening last night and the speedo was goin up really slowly and the car felt really sluggish for 14 psi. I took it back to the place that tuned it today and he said it sounds like the knock sensor or air flow meter. He's gonna hook all the jazz back up to it some time next week to try to find the exact problem, just wonderin what u guys reckon it is.

Matt

lanky71 Veteran

lanky71

Posted
Posted

When my engine light would come on and I didn't really notice any performance difference but there well could of been the light would come intimitently because apparently the speed sensor had gone yet my speedo was reading correctly.

series2r33 Collaborator

series2r33

Posted
  • Author
Posted

A few times the light came on like you said and I didn't notice the performance drop a few times but just lately the car felt like it wanted to go but the revs were going up really slow and the light was on. The guy that tuned my car said that that is a safety feature and it down tunes it to protect the engine. But I just can't understand why it didn't do it when I first got the car tuned and it does now...

He said that it must be that the knock sensor is tuned a little bit too sensitively. That or the air flow metre is playing up.

series2r33 Collaborator

series2r33

Posted
  • Author
Posted

What blew, turbo or engine?

Its resets when i turn the car off and all the tuned settings go good again. Then when i give it a boot it might screw up or not but when it does is keeps doin it untill i turn the car off.

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

    • nzstubbies
      Wanted R34 GTT Wheel Caps

      By nzstubbies · Posted

      Hi All, I'm based in Sydney and want to get hold of 4 stock R34 GTT wheel caps as pictured. Cheers
    • R3N3
      Need AC Compressor for R32

      By R3N3 · Posted

      Haha im flattered! Although my poor boat is collecting dust in the garage, as it hasn’t been driven in like 6 months. I forgot the to put the trickle charger on too, so the battery is likely toast now.. I have the frenchys kit. It is fantastic. My only gripe was that the hard lines from the firewall needed some tweaking, however, this was mainly due to my specific turbo and dump combo. The weight and size packaging is much nicer too. I think I have some pics on my build thread somewhere.. my justification for the kit was more “why not” I had gone to the trouble to modernise just about every other part of the car..
    • GTSBoy
      Does 98ron contain ethanol?

      By GTSBoy · Posted

      Actually, ethanol has probably never been cheaper, on a tax free basis, than petrol. With fuel excise being what it is, and only being levied on the hydocarbon component, not the ethanol component, and ethanol for non-drinking purposes not being subject to liquor excise - E85 was cheaper, but not because the combustible liquid itself was particularly cheaper.
    • Murray_Calavera
      Will I Need A Retune After Cahanging My Catalytic Converter ?

      By Murray_Calavera · Posted

      Maybe? If changing the cat to a higher flowing cat, caused the turbo to spool more quickly, and those areas of the map had not been tuned for the boost level it is now seeing, then yes you would need a re-tune. How dangerous it is running without the updated tune would depend on how far out the tune is with the now higher boost levels, how the engine protection has been setup, is the ECU compensating with a wideband sensor, is the boost control closed loop blah blah million other things... But yeah having said that, I wouldn't be surprised if changing out the cat for a high flow, in say a full 3" exhaust, made no noticeable difference at all. 
    • silviaz
      Need AC Compressor for R32

      By silviaz · Posted

      Ah yep. I asked a auto electrician about getting a cheap rebuilt alternator vs a new one. He also said he used to it back in the day but it ended up costing similar to what a new one would and recommended getting a new one,.
×
×
  • Create New...