Go Back   Subaru Impreza Forum - WRX STI Rally Performance Tuning > Subaru Impreza General > Subaru Impreza Discussions

Subaru Impreza Forum

Please help. wrx 93 import model
Reply
 
LinkBack Thread Tools Display Modes
Old 16 Jan 2008, 07:49 PM   #1 (permalink)
Fresh Scooby
 
Join Date: Jan 2008
Posts: 1
Question

please help, i have recently bought an impreza wrx 93 import model. it was running fine other than intermittant tick over fault. now cel is illuminated and it will not rev past 4,500 rpm. any suggestions, greatly received. thank you. ps. it was parked for 3 wks over xmas while i was abroad [i dissconected battery for 1 hour and it was running great for a couple of miles and then fault returned.

Last edited by bigcena; 16 Jan 2008 at 07:57 PM.
Offline   Reply With Quote
Old 17 Jan 2008, 10:55 PM   #2 (permalink)
Veteran Scooby
 
uk dave's Avatar
 
Join Date: Feb 2005
Location: Impreza Preservation Society HQ
Posts: 4,399
Send a message via MSN to uk dave
Probably as ecu reset itself ran ok then picked fault up again im guessing maf as that makes for a crap idle and occasional cutting out(not saying it is for definate though)

Dunno if ya can read the fault codes the same on a classic wrx or not however

Manually Reading ECU Codes (Classic Impreza’s only)

On Classic shape Impreza’s only (not Newage) faults can be displayed as pulses of the Check Engine Light. If the Check Engine Light goes out there is no fault.
In order to perform diagnostic (and ECU resets) you will need to connect some wires together under your steering column. Note, the following procedure only works for Classic shape Impreza’s, not for Newage.
  • Make sure your ignition is OFF
  • Connect the Black ‘Read Memory’ connectors together as illustrated below.

Figure 1 - Black and Green Connectors on Classic Impreza
When the above are connected you are in diagnostics mode. Turn your ignition ON and ‘read’ the ECU code(s) being reported according to the following instructions. Note, you may here relays clicking and your fan starting and stopping - this is normal when in diagnostics mode.
In Diagnostic Mode – No Fault is indicated by the Check Engine Light continuously & evenly flashing on/off (this is also used to indicate the successful completion of an ECU Reset).


Figure 2 - Check Engine Light Pulse Width
The long pulses (1.3 Seconds) indicate Tens and the short pulses (0.2 Seconds) indicate ones. Pulses are separated by Short Pauses (0.2 Seconds), multiple codes are separated by a Long Pause (1.8 Seconds).
The simplest way for an inexperienced mechanic to retrieve codes is to write the codes down in a sort of Morse Code (dots and dashes), and start a new line when you get a 1.8 Second pause (for NEW code), and then add the actual numbers up after code retrieval is completed.
(See Example Below)
--- CODE EXAMPLE, SINGLE CODE ---
1.3 second pulse (10)
0.2 second pause
1.3 second pulse (10….for a total of 20)
0.2 second pause
0.2 second pulse (1…..for a total of 21)
0.2 second pause
0.2 second pulse (1…..for a total of 22)
0.2 second pause
0.2 second pulse (1…..for a total of 23)
(Code 23 — MAF Sensor)
--- CODE EXAMPLE, MULTIPLE CODE ---
1.3 second pulse (10)
0.2 second pause
1.3 second pulse (10….for a total of 20)
0.2 second pause
0.2 second pulse (1…..for a total of 21)
0.2 second pause
0.2 second pulse (1…..for a total of 22)
0.2 second pause
0.2 second pulse (1…..for a total of 23)
1.8 second pause (this means NEW code)
1.3 second pulse (10)
0.2 second pause
0.2 second pulse (1…..for a total of 11)
0.2 second pause
.2 second pulse (1…..for a total of 12)
(Codes 23 and 12, MAF Sensor and Starter Circuit)


fault code explanations http://www.scoobypedia.co.uk/index.p...odeDefinitions
__________________
Best sealant used to date- Fourstar ultimate paint protection *Now discontinued* Rebranded as sonus SFX4 paint sealant-Try some ya wont be dissapointed.

Last edited by uk dave; 17 Jan 2008 at 10:58 PM.
Offline   Reply With Quote
Old 26 Jan 2008, 07:22 PM   #3 (permalink)
Fresh Scooby
 
Join Date: Dec 2007
Posts: 6
Hi Dave have problems starting from hot, followed your advise on manual readings and found i need two sensors, great ,yet to aquire but no problem found out by using the two black connections but no way can i find any green connections, Thought you may be able to help on that one, sensors needed are engine coolant and camshaft sensor. Thanks. Email is psmallows@yahoo.co.uk, if you get time.
Offline   Reply With Quote
Old 30 Jan 2008, 11:04 AM   #4 (permalink)
Senior Scooby
 
holyfield's Avatar
 
Join Date: Oct 2004
Location: heckfield hampshire
Posts: 1,662
no green on import mate
Offline   Reply With Quote
Old 30 Jan 2008, 08:57 PM   #5 (permalink)
Forum Sponsor
Paid & Proud
 
Join Date: Feb 2005
Location: north east
Posts: 655
they'll be taped into the loom if never used before...............
on every classic i have looked at!!
__________________
ASPerformance
UK distributors PIAA, EXE-TC, PERFORMANCE FRICTION
online shop!!
Offline   Reply With Quote
Old 30 Jan 2008, 08:59 PM   #6 (permalink)
Forum Sponsor
Paid & Proud
 
Join Date: Feb 2005
Location: north east
Posts: 655
just a though but does your speedo work??
__________________
ASPerformance
UK distributors PIAA, EXE-TC, PERFORMANCE FRICTION
online shop!!
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
import or not to import that is the question Modifiedmad Subaru Impreza Discussions 42 21 Jul 2006 11:09 AM
MY05 WRX PPP - Alarm Model? D-an-W Electrical (Including ICE) 10 21 Feb 2006 07:34 AM
insurance 4a wrx import NEED HELP.... 666nck General Chat - Anything about Anything 8 13 Oct 2005 07:52 PM
parallel import sti patrolman Subaru Impreza Discussions 4 02 Aug 2004 06:48 PM


All times are GMT. The time now is 03:34 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.