Go Back   Subaru Impreza Forum - WRX STI Rally Performance Tuning > Subaru Impreza Technical Area > Electrical (Including ICE)

Subaru Impreza Forum

Engine Diagnostics.
Reply
 
LinkBack Thread Tools Display Modes
Old 09 Dec 2007, 12:37 PM   #1 (permalink)
Super Moderator
Paid & Proud
 
2002pete's Avatar
 
Join Date: Sep 2004
Location: UK
Posts: 14,377
Engine Diagnostics.

OBD-11. OHC (TURBO) Info & Data.

Link:http://www.subaru-car.ru/imp1/imp01_sec2_12-1.pdf
__________________
Pete.

Offline   Reply With Quote
Old 07 Feb 2008, 04:03 PM   #2 (permalink)
Fresh Scooby
 
Join Date: Jan 2008
Posts: 1
Hi,
Subaru Impreza 1994 16V. I need one diagnostic reader for my Impreza, which I use ?
Offline   Reply With Quote
Old 25 Apr 2008, 06:34 AM   #3 (permalink)
Super Moderator
Paid & Proud
 
2002pete's Avatar
 
Join Date: Sep 2004
Location: UK
Posts: 14,377
ECU Diagnostics, Reset, Error Codes & Sensors Page.

Link: http://www.saxonfields.freeserve.co....iag%20Page.htm
__________________
Pete.

Offline   Reply With Quote
Old 25 Feb 2010, 07:16 PM   #4 (permalink)
Fresh Scooby
 
Join Date: Jan 2010
Posts: 4
Re: Engine Diagnostics.

Thanks for this information .

I have just done the ECU diagnostics and it has returned with lamp flashing code #21 and #23.

The reason why I am trying this is that my Subaru Impreza 1800 1994 4WD has been very sluggish over the past few years and seldom that I drive it .

I did do the test with removing the MAS while in idle and the engine died ,then left it out and it idled fine(have not road tested with MAS out .)

Any ideas .

Thanks Brad
Offline   Reply With Quote
Old 25 Feb 2010, 08:34 PM   #5 (permalink)
Cool Scooby
 
Technical_Bob's Avatar
 
Join Date: Feb 2010
Location: In a cloud up in the sky, Like lucy
Posts: 291
Send a message via MSN to Technical_Bob
Re: Engine Diagnostics.

Hi, Fault code 21 is Engine coolant temp sensor if this was playing up it wouldnt help the running of the car in many ways.
__________________
Subaru servicing, repairs and diagnostic fault finding help available.

Last edited by Technical_Bob; 24 Sep 2010 at 06:13 PM.
Offline   Reply With Quote
Old 26 Feb 2010, 09:28 AM   #6 (permalink)
Fresh Scooby
 
Join Date: Jan 2010
Posts: 4
Re: Engine Diagnostics.

Hi Technical Blob

Thanks very much for the information - What program are you using there as it sounds like the technical stuff I would love to have .

Regarding the sensor - if this is the faulty component that I have causing my 1800 to be very SLUGGISH then I could wire in two resistors of the given value for COLD and HOT and do a drive test with a change-over switch and I should see if any changes take place in the sluggish feel of the car .

Any technical on the MAF sensor , as I phoned the local agent but they only want to swap it out .

They did mention that they clean the sensors so I am going to get some 100% alcohol from the chemist this afternoon and clean it properly .

Really interested in the technical stuff - one only learns from experiencing these things .
Offline   Reply With Quote
Old 26 Feb 2010, 03:50 PM   #7 (permalink)
Fresh Scooby
 
Join Date: Jan 2010
Posts: 4
Re: Engine Diagnostics.

I bought the 95% alcohol from chemist and soaked the MAF sensor ,then used white paper(trick from the old video head cleaning)- the sensor was very dirty .

Did ECU reset:After replacing - only code was 51 and 33 ie: Neutral sensor and throttle .I am parked in at the moment so was unable to test drive as per ECU suggestions.

When placing everything to normal - no flashing codes .

I now want to adjust the idling on my 1994 impreza as my manual does not have my model mechanism .

Do not want to adjust air or anything else so I am asking the guru's.

I am new to 4-strokes so understand my questions.

Thanks

brad
Offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
16 important OIL questions and answers oilman Technical General 0 23 Jan 2008 03:31 PM
Answers From The Oil Expert Part # 2 oilman Technical General 0 18 Oct 2007 12:57 PM
FORD'S BRIDGEND ENGINE BUILDERS PARCEL UP THEIR GOOD IDEAS skylight General Chat - Anything about Anything 1 19 Aug 2005 09:55 PM
OUTSTANDING NEW ‘BOXER’ ENGINE FOR ’06 LEGACY RANGE skylight General Chat - Anything about Anything 3 03 Aug 2005 10:15 AM
Which engine fits my '99 sedan turbo mirk Subaru Impreza Discussions 0 31 Jul 2004 09:46 AM


All times are GMT. The time now is 08:13 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.