Subject	I get this also, and have also heard the O2 theory
Posted by	Mongoose on April 11, 2008 at 2:42 PM
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In Reply To	Hesitation ONLY on early driving posted by ked8923 on April 11, 2008 at 10:02 AM
Message	However, if that is the case, then while the O2s are still "warming" up I believe the car should run in open loop mode. In which case if you're getting hesitation it might be because you have a boost/vacuum leak somewhere. I tracked down and fixed a big boost leak in one recirc line. That helped noticeably, but mine still bogs a little when cold. It goes away after 1-2 minutes of easy driving. -Jason
Follow Ups	Hesitation ONLY on early driving - ked8923 10:02:56 04/11/08 I've known 02 sensors to produce that sort of problem. - GPA 10:26:13 04/11/08 Nope, I'll run 02 diagnostics and see if anything comes up - ked8923 11:51:51 04/11/08 I've heard that the FPR can cause this (n/m) - en5 11:10:37 04/11/08 I have actually got an usued fuel pressure gauge - ked8923 11:54:00 04/11/08 I get that too - ZEngineer 12:46:42 04/11/08 I get this also, and have also heard the O2 theory - Mongoose 14:42:16 04/11/08 Leaky injector orings and/or bad/old injectors will cause it - Spddracer 18:45:12 04/11/08 I'm begining to lean towards the orings on my car. - SuparexTT 22:37:03 04/11/08 Start by pulling all the connectors with the spring clip. - Audioquest 20:21:30 04/11/08 <<< Problem as well. Been fighting it for two years. - SuparexTT 22:34:24 04/11/08 maybe efi harness - z-u-later 07:41:02 04/12/08 I had thes same problem...02 replacement fixed it..read on. - Mike87T 19:11:16 04/12/08
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