The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Update. . .to the update 200 1987

uid 18083's pic
posted by  lucid on  Wed Sep 3 05:07 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

"...i just tested between 16 and a ground on the frame. Was this substitution ok?" Wrong pin, frame ground probably ok.

Time out ! The FAQ procedure says ECU 13 to 5, NOT 16 to 5. but neither one applies to your '87 LH 2.2 ECT sensor. (13 is the LH 2.4 ECT/ECU terminal)

You could do the procedure from ECU, pin 2, which is the Blue wire I suggested that you probe at the firewall harness.

The ECU puts a nominal "reference" voltage (about 5 volts) thru that wire to the ECT. The colder it is, the lower it's resistance, thus more of the reference voltage will "bleed off" to ground. The ECU "translates" the drop in reference voltage to a drop in temperature.

The middle of the road (68 F) numbers are 2300 to 2700 ohms Resistance, which equates to about 2.2 volts (what's left of the original 5v reference voltage).
--
Bruce Young,
940-NA (current)
'80 GLE V8 (Now gone)
'83 Turbo 245
'73 142 (98K)
'71 144 (track modified--and going to be crushed unless...)
New 144 from '67 to '78
Used '62 122 from '63 to '67






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.