Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Jeep Wrangler YJ
YJ General Discussion
Cold start problem on 92 2.5
Reply to thread
Message
<blockquote data-quote="deadpool1" data-source="post: 440366" data-attributes="member: 21229"><p>it's not the ECU, that we prove testing, unless rich$$ thick wallet. (99% are good, sent in) so....</p><p>if ECU is bad it only needs a RECAP job for $5 , done many.</p><p>The inputs to ECU are first, all computer made compute wrong if input are wrong, called "GIGO"</p><p>means garbage in , garbage out. (sensors) "gets you"</p><p>old fact as the oldest computer on earth.</p><p></p><p>2nd cause (not engine, fuel, and bad spark/battery) is bad output actuators. (IAC ,injectors. etc)</p><p>most old ECU go nuts if battery drops below 10vdc, and is too low cranking. so if spark is dead cranking ?,check voltage first.</p><p>when the voltage drops (battery) sure bad lugs. the ECM onboard regulators can not handle the low voltage. and just drop off line.</p><p>newer cars can do 9v but have special LDO regulators not invented in 1992. </p><p>Jeeps this old need a strong battery, jumper cable it and find out.? what can be more easy? IDK>?</p><p>good luck finding it.</p></blockquote><p></p>
[QUOTE="deadpool1, post: 440366, member: 21229"] it's not the ECU, that we prove testing, unless rich$$ thick wallet. (99% are good, sent in) so.... if ECU is bad it only needs a RECAP job for $5 , done many. The inputs to ECU are first, all computer made compute wrong if input are wrong, called "GIGO" means garbage in , garbage out. (sensors) "gets you" old fact as the oldest computer on earth. 2nd cause (not engine, fuel, and bad spark/battery) is bad output actuators. (IAC ,injectors. etc) most old ECU go nuts if battery drops below 10vdc, and is too low cranking. so if spark is dead cranking ?,check voltage first. when the voltage drops (battery) sure bad lugs. the ECM onboard regulators can not handle the low voltage. and just drop off line. newer cars can do 9v but have special LDO regulators not invented in 1992. Jeeps this old need a strong battery, jumper cable it and find out.? what can be more easy? IDK>? good luck finding it. [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ General Discussion
Cold start problem on 92 2.5
Top
Bottom