Check Engine Light

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

SnowBuck

Full Access Member
Joined
Nov 10, 2012
Posts
233
Reaction score
71
P0650 - Malfunction Indicator Light (MIL) Control Circuit.
Came on for 2 days. Now it went off ?!?!?!?
What's going on. Anything to worry about?
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
26,278
Reaction score
39,411
Location
Stockton, Ca.
P0650 - Malfunction Indicator Light (MIL) Control Circuit.
Came on for 2 days. Now it went off ?!?!?!?
What's going on. Anything to worry about?
interesting, a malfunction of the malfunction lol
does the cel light up when you turn the key to run but have not started it yet?
 
OP
OP
SnowBuck

SnowBuck

Full Access Member
Joined
Nov 10, 2012
Posts
233
Reaction score
71
Yes...cel light ON when you turn the key.
But Now it goes OUT when started, as normal.
What's going on?
Been out for 3 days now ?!?!?!?
UPDATE: the cel is now BACK ON !!!!!
 
Last edited:

drdave81

Full Access Member
Joined
Oct 7, 2020
Posts
239
Reaction score
367
Location
Waterford, MI
You have an issue with the circuit that illuminates the check engine light. Bad connection on the cluster, wiring, etc.
 
OP
OP
SnowBuck

SnowBuck

Full Access Member
Joined
Nov 10, 2012
Posts
233
Reaction score
71
Found an additional code (P0160). Replaced Oxygen sensor. CEL now out.
HOWEVER - discovered this: key to ON CEL is on. Start car CEL goes off. BUTT...if you very quickly stop and then key to ON = no CEL. Turn off, wait 5 seconds and to ON = CEL ON. Almost like something is resetting?!?!?
Would someone try this: Start your car so CEL goes out. Very quickly turn off and then to ON. Did your CEL immediately come on?
 
Last edited:

Forum statistics

Threads
132,400
Posts
1,867,413
Members
97,055
Latest member
bluefox1221

Latest posts

Top