scaned car for fist time and need help(update!)
Thread Starter
TECH Fanatic
Joined: May 2002
Posts: 1,449
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From: jacksonville FL
scaned car for fist time and need help(update!) My car has been hesitating in lower rpms and at WOT. Today was the first time I used auto x-ray ( or any scan tool) on it and I dont know how to tell for sure whats wrong bc I have never seen readings on my car when it was running right. I cant post the whole chart that I captured but it was on a WOT run from 17 mph to 119 mph, 2nd and 3rd gear.
LTrims go from 0.00 to 5.40 at *4600 rpms* and then back to 0.00 at **5400 rpms.**
O2 sensor 1 bank 1 starts at 0.08 and jumps to 0.82 at *4600 rpms* then to 0.84 to 0.86, 0.84 0.81
O2 sensor 2 bank 1 starts at 0.81 and climbs to 0.89
fuel system 1 stays in open loop
fuel system 2 starts at open loop goes to closed loop at *4600 rpms* and back to open at **5400 rpms**
Looks to me like my O2 sensor #2 is bad. Can anything else cause this? And it starts at 4600 rpms and stops at 5400 rpms. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
sorry so long thanks for the replys. , justin
<small>[ December 27, 2002, 12:16 AM: Message edited by: 99TranTrany ]</small>
LTrims go from 0.00 to 5.40 at *4600 rpms* and then back to 0.00 at **5400 rpms.**
O2 sensor 1 bank 1 starts at 0.08 and jumps to 0.82 at *4600 rpms* then to 0.84 to 0.86, 0.84 0.81
O2 sensor 2 bank 1 starts at 0.81 and climbs to 0.89
fuel system 1 stays in open loop
fuel system 2 starts at open loop goes to closed loop at *4600 rpms* and back to open at **5400 rpms**
Looks to me like my O2 sensor #2 is bad. Can anything else cause this? And it starts at 4600 rpms and stops at 5400 rpms. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
sorry so long thanks for the replys. , justin
<small>[ December 27, 2002, 12:16 AM: Message edited by: 99TranTrany ]</small>
TECH Enthusiast
Joined: Jan 2002
Posts: 597
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From: Orange Park, FL
Re: scaned car for fist time and need help(update!) Justin,
By your post it appears that you arent 'properly' reading your scanned data. Get in touch with me via my email addy and I can ATAP your car for you and get you headed in the right direction. I live in Orange Park.
Chris
By your post it appears that you arent 'properly' reading your scanned data. Get in touch with me via my email addy and I can ATAP your car for you and get you headed in the right direction. I live in Orange Park.
Chris
Thread Starter
TECH Fanatic
Joined: May 2002
Posts: 1,449
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From: jacksonville FL
Re: scaned car for fist time and need help(update!) We A-taped my car today. A big thanks to chris (chris99WS6PWTMET) for hooking up his A-tap and explaining to me what the hell all those numbers mean! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> Seems everything is fine, my LTrims,O2's, timming,and no KR. The thing is it still hesitates or studders at WOT. <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> I think now it might just be a dirty or cloged fuel filter. I havent changed it since I got the car or ran any injector cleaner.With adding the new plugs and the new intake lid I think it might be getting more air and spark but not enough fuel at WOT.Tomorrow im gonna change the filter and put in some injector cleaner and see if that takes care of it. I'll post a reply with the resluts.Anybody have any other sugestions?
, justin
, justin
