 Speedo is going nuts... (Check Engine Light!), (Updated!) |
 Jan 13, 2006 - 7:58 AM
|
 
|
|
Enthusiast  Joined Jul 25, '05 Currently Offline Reputation: 0 (0%)  |
Topic sums it up pretty well. My speedo jumps sporadically and eventually dies at zero, bouncing up sporadically. Whenever I had problems with this before it was always electricity problems screwing up the voltage readings from the Hall effect sensors. No dice, I tested it thourougly; my electrical system is running strong.
My next stop is the vehicle speed sensor. On my CRX it's right over the transmission housing, but I can't seem to find it on this 7A-FE. Is Toyota hiding it or am I just looking right past it? Edit I threw a solid CEL today! I the car was slow to start, and then after about 10 minutes of driving i threw a solid CEL (but no limp mode). Where do I jump to pull the CEL and is there a directory of CEL definitions anywhere around? This post has been edited by [Freemantle]: Jan 16, 2006 - 2:49 PM -------------------- 1995 Celica ST - Riceball grocery getter. I saved her from Neons, 19" rims and TVs. All-stock save a weld-on muffler (does that count?) and V-AFC.
1991 CRX - The hobby car. I say that because I can never seem to get it completely together! |
 |
Replies
|
Jan 18, 2006 - 1:46 PM
|
|
 Enthusiast Joined Jul 7, '04 From Germantown, WI Currently Offline Reputation: 0 (0%) |
I have this exact problem on my 93 Geo Prizm (4A-FE). I threw a code 42 which is the VSS code. I changed the VSS on the tranny and the ECU and the behavior remains the same. Lagos, you say it may be the guage cluster eh? Suprised an output would throw a CEL.
|
|
Jan 31, 2006 - 9:26 PM
|
|
|
Enthusiast Joined Jul 25, '05 Currently Offline Reputation: 0 (0%) |
QUOTE(1900WattCelica @ Jan 18, 2006 - 1:46 PM) [snapback]380454[/snapback] I have this exact problem on my 93 Geo Prizm (4A-FE). I threw a code 42 which is the VSS code. I changed the VSS on the tranny and the ECU and the behavior remains the same. Lagos, you say it may be the guage cluster eh? Suprised an output would throw a CEL. Ressurection and update - I did pull a VSS code. I replaced that this afternoon with no improvement. I'm going to go ahead and search the classifieds/ebay for a cheap ST gauge cluster. My battery is marked C-1 (so it's 5 years old) and my V-AFC only reads about 12.2 volts in the system at idle (regular 14.4 at cruise speed) so I think I have the headlight dimness problem pegged as another problem. The CEL light i threw only occours when I exceed about 73~ MPH (3250 RPM on the V-AFC). It dosen't always stick and has no effect on performance. Just another thing on the list of things I need to replace on this car (plastic casting on teh radiator looks pretty bad, that's the next on my list). Just dropping the update for anyone else who'se experienced this. -------------------- 1995 Celica ST - Riceball grocery getter. I saved her from Neons, 19" rims and TVs. All-stock save a weld-on muffler (does that count?) and V-AFC.
1991 CRX - The hobby car. I say that because I can never seem to get it completely together! |
Posts in this topic
[Freemantle] Speedo is going nuts... (Check Engine Light!) Jan 13, 2006 - 7:58 AM
[Freemantle] Bump to the top for new edits! Jan 16, 2006 - 2:50 PM lagos it would help to know what year your car is. fill ... Jan 16, 2006 - 5:12 PM
 |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
| Lo-Fi Version | Time is now: February 28th, 2026 - 1:03 AM |