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Injector light on when taking foot off the clutch #1626680
04/11/2018 10:38
04/11/2018 10:38
Joined: Jan 2008
Posts: 1,268
spain
crgracing Offline OP
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Had a issue with the injector light. Connected startrek and managed to find a spare throttle valve sensor.

Changed it last night no problems.

This morning as I pull away the ABS light comes on and the injector light aswell making the car go up and down in the revs.

So put her in neutral and problem disappears. I tu again, first gear and as soon As I start taking my foot off the clutch injector light again and reving up and down.

In neutral the car is great 900 rpm no injector light everything demes Ok.

Any ideas?

Thanks.

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626681
04/11/2018 10:58
04/11/2018 10:58
Joined: Dec 2005
Posts: 7,143
Lightwater, Surrey, UK
DaveG Offline
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Did startrek identify the initial fault as the TPS?

What does it say now?


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626687
04/11/2018 13:59
04/11/2018 13:59
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spain
crgracing Offline OP
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Yep first error was the TPS. Checked again and the TPS appears in red again.

The rest is OK.

Thanks.

Last edited by crgracing; 04/11/2018 14:01.
Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626689
04/11/2018 14:30
04/11/2018 14:30
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Lightwater, Surrey, UK
DaveG Offline
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Are you sure the ABS light is not just the brake fluid level light, will come on under sharp acceleration/braking/cornering if the level is low. And maybe the spare TPS is also faulty or perhaps more likely, the wiring/connector to the TPS is faulty, bad earth perhaps?


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626690
04/11/2018 14:41
04/11/2018 14:41
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spain
crgracing Offline OP
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For the ABS light not possible to come on the conditions you mention has I cant pull aways and get her into first gear.

Ill give it a check on the earth of the TPS. Could be possible that its also faulty they are very expensive so have to be sure before buying a new one.

Tía la.

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626698
04/11/2018 18:33
04/11/2018 18:33
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Pothole City
GrahamL Offline
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If the ABS light comes on as soon as you start moving then probably a dodgy wheel sensor, if ABS light comes on as you release the clutch and revs drop but before you start moving then could be dodgy alternator or battery causing voltage drop, as that will also cause an ABS warning light.

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626700
04/11/2018 20:05
04/11/2018 20:05
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spain
crgracing Offline OP
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Would it have anything to do with the injector light and reving up and down?

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626707
04/11/2018 22:49
04/11/2018 22:49
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GrahamL Offline
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Originally Posted By crgracing
Would it have anything to do with the injector light and reving up and down?


Maybe, but I don't know enough about the 16v ECU and why it lights the injector light to be sure.

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626714
05/11/2018 05:25
05/11/2018 05:25
Joined: Dec 2005
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Hemel in the Hempstead
barnacle Offline
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Sounds like a lot of things are lying to the ECU - are all the earths intact?



Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626729
05/11/2018 16:25
05/11/2018 16:25
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spain
crgracing Offline OP
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Have to get them all checked.

Could there be anything else involved?

Thanks

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626747
06/11/2018 09:30
06/11/2018 09:30
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Freedom
Master_Mariner Offline
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Freedom
Water getting in to the ecu? That would cause havoc.

Is it dry etc?

Good luck with this- electrical gremlins are the bane of many!

Regards

MM

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626783
07/11/2018 18:40
07/11/2018 18:40
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crgracing Offline OP
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Hahahah I will never ver rid of her! If I cant find the issue it will go staright into my living room hahahah.

Ill get to it on the weekend, but were can I find wire diagrams as I do no know were all the earth connections are.

Thanks.

Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626808
08/11/2018 17:30
08/11/2018 17:30
Joined: Dec 2005
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Hemel in the Hempstead
barnacle Offline
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Bad news... the wiring diagrams for the 16v don't include the loom locations like the 20v, which is a shame. What you find in the member's tech manuals is all we've got.



Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Injector light on when taking foot off the clutch [Re: crgracing] #1626831
09/11/2018 18:10
09/11/2018 18:10
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crgracing Offline OP
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Soy ideas were to start?

I have checked the earth on the gearbox and its ok.

Aún one with 16vt knows were to keep looking?
Could a dead battery also cause this issue?

Re: Injector light on when taking foot off the clutch [Re: barnacle] #1626846
10/11/2018 12:24
10/11/2018 12:24
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crgracing Offline OP
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As I have the battery in the boot, I took it out. Cleaned both terminals actaully cleaned all of them.

Went through all the wrinig, cut out the rusted areas.

Checked the TPS position moved around and looks like she is running with no issues.

I hope it das only that.

Ill get back if she dies again.

Thanks.


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