1990 "INFL REST" light Problem
Racer
Joined: Oct 2004
Posts: 435
Likes: 0
From: Seattle WA
It's usually either of the two sensors in the front of the car. One's kind of under the battery, and the other one is on the other side of the engine bay in a similar location. Run the diagnostic on the system and it'll tell you more.
Racer
Joined: Mar 1999
Posts: 323
Likes: 0
From: Webster, NY
Infl. Rest. Lite on '90
Hey SILVERSIDES....I've had the same exact problem..welcome to the "pet peeves" of most '90's club". You may get some additional information on this problem by checking out the link below in the tech. section...........Wait til your 3rd. brake lite goes out on you....that's another quirk..just replace your brake lite switch on the pedal.....and the BOSE speakers die.......just to name a few. Good Luck and check out this link................90Vettfan
https://www.corvetteforum.com/techti...D=46&TopicID=2
https://www.corvetteforum.com/techti...D=46&TopicID=2
Last edited by 90Vettfan; Jan 23, 2007 at 02:50 PM.
Drifting
Joined: May 2005
Posts: 1,370
Likes: 1
From: Raleigh NC
I had the same issue on my '90. I bought the '90 airbag code clearance tool from Mid-America and it cleared the code permanently, which also turns off your seatbelt light (if your airbag light is on, your seatbelt light stays on). I still have the code clearing tool. PM me if you're interested.
Le Mans Master
Joined: Dec 2005
Posts: 5,198
Likes: 10
From: Homestead Fl
St. Jude Donor '06-'07-'10-'11-'12-'13-'14
I had the same issue on my '90. I bought the '90 airbag code clearance tool from Mid-America and it cleared the code permanently, which also turns off your seatbelt light (if your airbag light is on, your seatbelt light stays on). I still have the code clearing tool. PM me if you're interested.
Drifting
Joined: May 2005
Posts: 1,370
Likes: 1
From: Raleigh NC
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Le Mans Master
Joined: Dec 2005
Posts: 5,198
Likes: 10
From: Homestead Fl
St. Jude Donor '06-'07-'10-'11-'12-'13-'14
Anybody else had good luck with the world famous Mid America Infl Rest code clearing tool? I'm going to get one if there is a good show of hands.
Team Owner
Joined: Jul 2002
Posts: 37,048
Likes: 69
From: This city NEVER sleeps! Frank's back yard!
The code reset tool will only work if the code isn't resetting itself. Because in 90 they didn't put dielectric grease on the frame before mounting the sensors, the frame corrodes/rusts and the sensor loses its ground, and thus the infl. rest. light comes on. The seat belt light only stays on if you pull the Infl. Rest. light bulb out (or it burns out). The real solution is to pull up the sensors, clean them and the frame very well, then put down some dielectric grease and remount the sensors. THEN reset the codes as prescribed in the Helm's manual. If they still lose ground, then check the connector of the sensor to the airbag (one on each side) - they also can get rusted - just clean them too. Reset the code again - then it should be solved. I did this on my 90 in 02, been fine since.
Burning Brakes
Joined: Nov 2004
Posts: 897
Likes: 12
From: Land of Whiskey Rebels, PA
Same problem here. Although, I think I'm going to go with DDSLT5's suggestion on this one. Sounds more permanent, plus it will allow me to get in touch with my car's "inner self".
Racer
Joined: Mar 1999
Posts: 323
Likes: 0
From: Webster, NY
Inflation Restraint lite problem
I bought the '90 airbag code clearance tool from Mid-America and it cleared the code permanently,
Tell me more about this tool please.....would you be willing to loan this out? I've been living with my "infl. lite" on for the past 2 seasons...almost gotten used to seeing that dreaded lite on. Let me know if you would...some info please........thanks...90Vettfan
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
You don't need the tool if you buy a FSM, it tells you the sequence to reset the codes yourself by grounding the correct ALDL pin. Of course you want to get the code first & the book will then tell you which sensor or other part is a fault. Buy the FSM, you won't regret it...
By the way, my frame rails are perfect, no rust or corrosion & I've had both sensors throw codes over the years. Diagnostics have usually shown to be the stupid connectors inside the car... passenger foot well & drivers kick panel area. They also are cleaned & dialectic greased to stop the problem.
By the way, my frame rails are perfect, no rust or corrosion & I've had both sensors throw codes over the years. Diagnostics have usually shown to be the stupid connectors inside the car... passenger foot well & drivers kick panel area. They also are cleaned & dialectic greased to stop the problem.
Racer
Joined: Feb 2006
Posts: 388
Likes: 0
From: Moscow pa
I had that problem two but was dumb back then and took it back to the place where i got the car. There fix was to take the bulbs out and it worked
There is a way to fix it i have it down in the garge it was a common problem on the 90 vet i will look when i gethome from work and let you guys no
Tbone
There is a way to fix it i have it down in the garge it was a common problem on the 90 vet i will look when i gethome from work and let you guys no Tbone
Racer
Joined: Oct 2004
Posts: 435
Likes: 0
From: Seattle WA
Sometimes you just have to bite the bullet and replace the sensors. Both of the sensors ended up going bad on my old 90. I tried the cleaning trick, and it worked for a few days, but the code came back. I replaced them and never had any trouble with them again.
Burning Brakes
Joined: Nov 2004
Posts: 897
Likes: 12
From: Land of Whiskey Rebels, PA
I'm trying to determine whether I should just replace the sensors while I'm there and be done with it.
Drifting
Joined: Jun 2005
Posts: 1,426
Likes: 1
From: brookville pa.
sensors
j the sensors i dont think can get water in them they sit flat on each frame rail and rust gets between rail and flat part of sensor dont know if its worth buying used or not price of new is around 130 apiece