What triggers a cel?
#4
After 02 senors, vaccuum check, plugs and wires (and a failed emissions).. the truck is still idle jumping and running poorly.. I thought I had it nailed but its back!!! So I have been reading alot about TPS's and thought I would inquire.. So if the TPs would trigger a CEL, and I dont have a CEL on, then Im cool?? I even rana scanner and pulled code 21 and 27..hence the 02 sensor changes... but nothing showed up about a TPS..
any thoughts?
any thoughts?
Trending Topics
#8
Registered User
Join Date: Sep 2007
Location: San Francisco East Bay
Posts: 8,250
Likes: 0
Received 820 Likes
on
648 Posts
For instance, if your only TPS problem was an intermittent idle-position condition, I don't think that would throw a code. But it might give you loopy idle.
So you still have to be systematic, even if the computer doesn't know yet that you've got a problem.
#9
Registered User
Join Date: Mar 2008
Location: Temecula Valley, CA
Posts: 12,723
Likes: 0
Received 4 Likes
on
4 Posts
Basically:
21- faulty heater circuit on primary O2 sensor
27- faulty heater circuit on sub-O2
I already commented on this on his other thread: https://www.yotatech.com/forums/f116...e-help-179698/
21- faulty heater circuit on primary O2 sensor
27- faulty heater circuit on sub-O2
I already commented on this on his other thread: https://www.yotatech.com/forums/f116...e-help-179698/
Last edited by abecedarian; 04-17-2009 at 06:18 PM.
#10
went back to emissions this morning after all that work done..failed bad!!! Legal CO limit is 1.20, I was 7.89!!!!!!! What in the hell is going on? Anyone know what that level is 7 times what it should be? the truck aside from the idle jumping from time to time, runs well.. What can I do to pass emissions????
thanks
thanks
Thread
Thread Starter
Forum
Replies
Last Post
Sam hain
95.5-2004 Tacomas & 96-2002 4Runners
19
09-30-2015 08:25 AM
charlie_fong
General Vehicle Related Topics (Non Year Related)
0
09-27-2015 10:06 PM
Boomer8404
86-95 Trucks & 4Runners
0
09-24-2015 01:12 PM