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Ecu displays all dtc with scan tool


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Elitewolf240
New User

Mar 28, 2014, 12:56 AM

Post #1 of 7 (986 views)
Ecu displays all dtc with scan tool Sign In

Ecu displays all dtc with scan tool. Does that mean the ecu is bad ???


kev2
Veteran
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Mar 28, 2014, 7:34 AM

Post #2 of 7 (955 views)
Re: Ecu displays all dtc with scan tool Sign In

my first thought is the scanner is bad - try a FREE scan at the parts houses, abd compare resultsd


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 28, 2014, 7:40 AM

Post #3 of 7 (954 views)
Re: Ecu displays all dtc with scan tool Sign In

I hear that's common in Maserati's like yours.

If that's all the effort you can but into your question don't be surprised if the answers are just as incomplete.

FORUM RULES please read



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Elitewolf240
New User

Mar 28, 2014, 8:41 AM

Post #4 of 7 (947 views)
Re: Ecu displays all dtc with scan tool Sign In

I've used OTC and snap on and ease obd scan tools with the same results.
I'm working on a 1989 Subaru Justy. Obd 1 system.
All I'm looking for here is that a possibility if an ecu shows all obd codes know to man. that it could be the ecu is bad. Thank you


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 28, 2014, 9:28 AM

Post #5 of 7 (941 views)
Re: Ecu displays all dtc with scan tool Sign In

Sure it could but I wouldn't say it automatically does.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



kev2
Veteran
kev2 profile image

Mar 28, 2014, 10:14 AM

Post #6 of 7 (937 views)
Re: Ecu displays all dtc with scan tool Sign In

OBD1 and Subaru would have me confirming the scanners are compatible with the vehicle- contact OTC and others via their web site directly


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 28, 2014, 10:26 AM

Post #7 of 7 (933 views)
Re: Ecu displays all dtc with scan tool Sign In

I know I've never seen this engine (1.2, 3 cyl, two types listed) however what is the problem or symptoms you are trying to fix or just playing with a scanner? Compatibility would be my first concern never mind the age.


Does you scanner work on another?


IMO, tons of possible problems with OBDI or better pre 1990 at least you should just find the problem or isolate it fairly easily starting with basic functions of an engine. Is this running at all or what?


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