miss at idle: again

joe_mnJuly 27, 2009

fairly common issue online. lots of threads. erratic engine miss at idle. drives fine off idle. it will miss when cold too. does that rule out lean idle miss since the mixture is richened up slightly when cold? same miss when hot. new intake gaskets. new plugs/wires. steady vacuum reading. checked brake booster hose. cleaned egr valve. miss comes and goes and is not constant. seems to vary. o2 sensors? do they even control computer when motor is cold? map sensor? maf sensor? will motor run with both unplugged for test?

Thank you for reporting this comment. Undo

Idle air control maybe?

    Bookmark   July 31, 2009 at 6:36PM
Thank you for reporting this comment. Undo

sparkplugs? caddy with northstar. did headgaskets 2yrs ago. put in single tip platinum autolites. not ac-delco dbl platinum's. so i put them in and miss is 90% gone. not perfect but close to it. old plugs were gray and dry. don't think it is injector related.

    Bookmark   August 18, 2009 at 10:09PM
Sign Up to comment
More Discussions
Need AWD Dodge Magnum RT
too much pressure in cooling system
I have a 95 sable that lost heat about a year ago....
dump my buick rendezvous?
Do you know the Buick Rendezvous? Mine has been outstanding...
Honda Odyssey 2005 EX-L Fire
Hi All, My Honda Odyssey 2005 EX-L recently totaled...
Failing transmission questions
I have a 2001 Honda Odyssey, 167,000 miles. I've always...
Sponsored Products
Bianca 60" Wall-Mounted Single Bathroom Vanity - Espresso
Modern Bathroom
Wyndham Collection Bathroom Centra 60 in. Double Vanity in Espresso with Glass
Home Depot
Moooi | Boutique Footstool
Arturo Alvarez | Aros Floor Lamp
Blue Patriotic Eagle Beach Towel
$10.99 | zulily
Warner Brothers Scooby Doo Roh Roh Flip Sofa - 31120
$88.99 | Hayneedle
© 2015 Houzz Inc. Houzz® The new way to design your home™