Jump to content
The mkiv Supra Owners Club

losing faith in my supra please help


speedophile

Recommended Posts

i have uk twin turbo supra that has been parked up due to a faulty alarm this past month, the alarm has been took out but went to start the car for the first time and the car seems to be under fueling and the rev hand is dropping to 500 and less in revs i left the car running for 20mins but its still spluttering like its going to cut out... then i took the car for a short run down the road but from leaving the house to getting back there is wicked steam leaving the exhaust covering the road behind the car.. its steam and not smoke as i got the wife out to rev the car at the front of the house and its just crazy the area it covers when reved but when you lift your foot of pedal it goes back to spluttering... the car is well looked after and all coolant level and oil levels are good

 

any ideas?

Link to comment
Share on other sites

yes you's are right but when cold they run around 1000revs and then drop back to 500 etc but when it was cold the rev hand was going up and down from 1000 to 500 but when the car warmed up its dropping from 500 back to nothing nearly , the rev hand is all over the place.... is there a safe mode on these cars like the gt4 if so it might need resetting because the battery was changed

Edited by speedophile (see edit history)
Link to comment
Share on other sites

is there a safe mode on these cars like the gt4 if so it might need resetting because the battery was changed

 

If the battery has been disconnected the ECU will have been reset, this will effect the tickover and running of the engine, it'll take a few miles until it relearns and runs okay again.

Link to comment
Share on other sites

thanks nic so you reckon if i drive it that it will reset, iam just afraid that it will leave me standed on the road if i go out... on the gt4's all that you have to do is cross two terminal points to reset the safe mode can this be done on the supra

 

The ECU can be reset by connecting 2 terminals, when reset the engine tends not to tickover well - revs will be low and it can stall - and it can run a bit lumpy. The ECU should relearn the settings after a drive out.

 

As Dnk said the white smoke could just be condensation if it's been stood a while. I'd make sure oil and coolant levels are okay then run the car whilst stood until it gets up to temperature. Keep an eye on the gauges and check for any leaks. If all is well take it for a drive and see how it runs. Hopefully the ECU will relearn the settings, the condensation will clear and all will be as it should again.

Edited by Nic (see edit history)
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.