As soon as car hits closed loop it runs like crap.
Thread Starter
Registered User
Joined: Oct 2000
Posts: 1,531
From: Tucson, AZ
As soon as car hits closed loop it runs like crap.
As soon as my car goes into closed loop it starts to hesitate when crutising and also has a miss at idle. If i go WOT or just give it a decent amount of gas its fine. In Open loop it is also fine. Data master shows that when it goes into closed loop it starts to run rich. Could this be related to EGR? Ever since i got rid of the cats i have been having this problem, but it is getting worse and worse. I tried pulling the vacume supply to the EGR and driving it but it didnt help any. ANy ideas?
I have a datamaster log if anyone wants to look at it.
I have a datamaster log if anyone wants to look at it.
Registered User
Joined: Mar 2002
Posts: 4,827
From: Waynesboro, PA
Well, think about it like this. What get ingored in open loop and deep or wide open throttle (power enrichment mode)??
Oxygen sensors comes immediately to mind on this one. Do you have access to a scanner so you can see what's going on? I'd be getting the car scanned first so you know what the deal is.
Oxygen sensors comes immediately to mind on this one. Do you have access to a scanner so you can see what's going on? I'd be getting the car scanned first so you know what the deal is.
Administrator
Joined: Nov 1998
Posts: 71,094
From: Hell was full so they sent me to NJ
Originally posted by Fastbird93
......... Do you have access to a scanner so you can see what's going on? I'd be getting the car scanned first so you know what the deal is.
......... Do you have access to a scanner so you can see what's going on? I'd be getting the car scanned first so you know what the deal is.
If you have the log available in ".csv" format, either post a link, or send me a copy. Be sure to identify the content clearly in the subject, because I generally do not open attachments.
Thread Starter
Registered User
Joined: Oct 2000
Posts: 1,531
From: Tucson, AZ
Yeah, i have a scanner, problem is i dont really know what im lookin at.
I have a log of me just cruising around the block, which is when the problem occurs. If someone can take a look at it for me i will email it to you and would appreciate it.
Wouldnt a bad O2 give me a check engine light?
I have a log of me just cruising around the block, which is when the problem occurs. If someone can take a look at it for me i will email it to you and would appreciate it.
Wouldnt a bad O2 give me a check engine light?
Registered User
Joined: Mar 2003
Posts: 1,146
From: Maryland
Originally posted by Injuneer
Since he has a DataMaster log, there's a good chance he's already scanned it
If you have the log available in ".csv" format, either post a link, or send me a copy. Be sure to identify the content clearly in the subject, because I generally do not open attachments.
Since he has a DataMaster log, there's a good chance he's already scanned it
If you have the log available in ".csv" format, either post a link, or send me a copy. Be sure to identify the content clearly in the subject, because I generally do not open attachments.
Doh! 
Registered User
Joined: Nov 2001
Posts: 3,515
From: Kansas
Originally posted by jchevy
I have a log of me just cruising around the block, which is when the problem occurs. If someone can take a look at it for me i will email it to you and would appreciate it.
I have a log of me just cruising around the block, which is when the problem occurs. If someone can take a look at it for me i will email it to you and would appreciate it.
If you email me.. i will gladly take a look at it. I have datamaster so no need to convert the file but Fred is a valuable resourse so I would do it for him.
Wouldnt a bad O2 give me a check engine light?
Thread Starter
Registered User
Joined: Oct 2000
Posts: 1,531
From: Tucson, AZ
Originally posted by turbo_Z
search for a leak at the driver side header or collector.
search for a leak at the driver side header or collector.
Registered User
Joined: Mar 2003
Posts: 1,146
From: Maryland
Hey can you email the CVS file i want to see what your o2's looked like when they where bad.
Asadler@clintonnursing.com
I think mine might be slow
thanks
Asadler@clintonnursing.com
I think mine might be slow
thanks