rough idle while on turbo timer

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rough idle while on turbo timer

Postby sik_gt_starly » Thu Nov 25, 2010 8:59 am

5efte EP82

Finally got some motivation together and took starlet for a drive, been months since the last one.

Idles perfect when turned on, drives fine and everything appears to be doing what its supposed to do.

I have a turbo timer of unknown brand age of condition.

Before i put the 5efte in it idles fine when i turned key off and was always idling perfect until the car turned off.

Now when i turn car off, turbo timer does its thing and the car idles at normal RPM most of the time but coughs and splutters and almost stalls every 20 seconds or so.

has anyone had this problem before and/or able to offer any suggestions to fix?

Thanks tons
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Re: rough idle while on turbo timer

Postby sergei » Thu Nov 25, 2010 9:16 am

sik_gt_starly wrote:5efte EP82

Finally got some motivation together and took starlet for a drive, been months since the last one.

Idles perfect when turned on, drives fine and everything appears to be doing what its supposed to do.

I have a turbo timer of unknown brand age of condition.

Before i put the 5efte in it idles fine when i turned key off and was always idling perfect until the car turned off.

Now when i turn car off, turbo timer does its thing and the car idles at normal RPM most of the time but coughs and splutters and almost stalls every 20 seconds or so.

has anyone had this problem before and/or able to offer any suggestions to fix?

Thanks tons


Do you know if it is the battery light on when it is on turbo timer?
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Postby sik_gt_starly » Thu Nov 25, 2010 9:25 am

np there are no lights on the dash

Battery is brand new and taken out of car and stored in my room when its not being used.
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Postby rollaholic » Thu Nov 25, 2010 9:46 am

throw away turbo timer?
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Postby sik_gt_starly » Thu Nov 25, 2010 3:40 pm

throw away turbo timer?


yes thats an option but would rather get it working sweet since it has to be something simple
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Postby cat007 » Thu Nov 25, 2010 4:56 pm

Turbo timer's are pretty simple in regards to wiring.

Check to make sure it's wired up under the dash properly.

Generally they should charge the battery while they're running and have the same characteristics and features of the ignition being in the ON position (sometimes the radio and heater/blower still work).

It might only be providing the ECU with power and not leaving the charge circuit on or maybe something like the idle speed controller valve is turning off too if it's not wired in properly....
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Postby sergei » Thu Nov 25, 2010 5:31 pm

Make sure both IG1 and IG2 (black+colour stripe, check which ones are on when the key is ON position) wires are powered on when the turbo timer is on.
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Postby escortman » Thu Nov 25, 2010 6:08 pm

just rip it out turbo timers are like them electric fans to put in your intake ..... rubbush
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Postby cat007 » Thu Nov 25, 2010 6:09 pm

escortman wrote:just rip it out turbo timers are like them electric fans to put in your intake ..... rubbush


Uh oh. Not this argument again :roll:
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Postby Lloyd » Thu Nov 25, 2010 6:22 pm

Fuel pump not getting power?
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Postby cat007 » Thu Nov 25, 2010 9:27 pm

Lloyd wrote:Fuel pump not getting power?


Good point!
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Postby tsoob » Thu Nov 25, 2010 9:50 pm

rip it out. end of story
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Postby escortman » Thu Nov 25, 2010 11:05 pm

cat007 wrote:
escortman wrote:just rip it out turbo timers are like them electric fans to put in your intake ..... rubbush


Uh oh. Not this argument again :roll:



wasnt arguing just making a statement :lol:
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Was 300hp on 10psi with stock twins, hopefully on similar boost be around 400hp

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RIP 13sec AE82 fxgt 4agte 5psi TD05 20g
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Postby 1hypo3 » Fri Nov 26, 2010 7:25 am

escortman wrote:just rip it out turbo timers are like them electric fans to put in your intake ..... rubbush




Totally agree!
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Postby sik_gt_starly » Fri Nov 26, 2010 8:47 am

since i have a turbo timer and its mounted nice and would look silly and yuck if i removed it its going to stay there.

and also since its probably only a dodgy wire stopping it from working properly im going to fix it.

I will have a check that fuel pump is getting power, it should be as whenever i rev motor as its about to stall it comes back to life fine. will get out the multimeter and check.

I have a feeling its got a dodgy wire/connection to the continuous power supply.

thanks for help so far
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Re: rough idle while on turbo timer

Postby gt4dude » Mon Dec 06, 2010 8:59 am

sergei wrote:
sik_gt_starly wrote:5efte EP82

Finally got some motivation together and took starlet for a drive, been months since the last one.

Idles perfect when turned on, drives fine and everything appears to be doing what its supposed to do.

I have a turbo timer of unknown brand age of condition.

Before i put the 5efte in it idles fine when i turned key off and was always idling perfect until the car turned off.

Now when i turn car off, turbo timer does its thing and the car idles at normal RPM most of the time but coughs and splutters and almost stalls every 20 seconds or so.

has anyone had this problem before and/or able to offer any suggestions to fix?

Thanks tons


Do you know if it is the battery light on when it is on turbo timer?



my battery light comes in when the turbo timer is doing its thing, mine happens to be part of the alarm/immobiliser tho, what does the battery light mean when its on turbo timer?
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Re: rough idle while on turbo timer

Postby sergei » Mon Dec 06, 2010 9:06 am

gt4dude wrote:
sergei wrote:
sik_gt_starly wrote:5efte EP82

Finally got some motivation together and took starlet for a drive, been months since the last one.

Idles perfect when turned on, drives fine and everything appears to be doing what its supposed to do.

I have a turbo timer of unknown brand age of condition.

Before i put the 5efte in it idles fine when i turned key off and was always idling perfect until the car turned off.

Now when i turn car off, turbo timer does its thing and the car idles at normal RPM most of the time but coughs and splutters and almost stalls every 20 seconds or so.

has anyone had this problem before and/or able to offer any suggestions to fix?

Thanks tons


Do you know if it is the battery light on when it is on turbo timer?



my battery light comes in when the turbo timer is doing its thing, mine happens to be part of the alarm/immobiliser tho, what does the battery light mean when its on turbo timer?


Normally it means it is not charging the battery when turbo timer is on.
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