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SN95 Cobras
96' Procharged Cobra "Casper" Build
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<blockquote data-quote="01silverstang" data-source="post: 16615820" data-attributes="member: 21743"><p>Late to post but got a couple things done this weekend. My new OEM 02 sensors arrived, and I was able to get them both installed. The car still ran rough immediately after, but I'm assuming there is some amount of time for the PCM to start receiving the signal and then to make adjustments. I should have let it idle longer to verify, but got frustrated that it wasn't a more immediate change and moved on to other things I needed to do.</p><p></p><p>I removed the drivers side PCV from the vacuum line as others recommended earlier. I still need to find a place to mount my catch can which is rather large, but I have everything I need for that once I figure it out. I also removed the intake tube from the throttle body and hit it with some carb cleaner to make sure the blades weren't sticking. It appeared to be entirely closed and while I did PB blast the idle stop screw, adjusting it didn't seem to make a visual difference, I would have assumed based on the 19.2 (%) reading from live data on my scanner that the blades would appear to be open at idle, but they didn't. After some adjustment the percentage dropped to 18.6 (%) which makes me wonder if the TPS is faulty, or needs adjustment. I know the earlier SN95 were adjusted by loosening the screws and moving it until it read proper voltage. If it's not adjustable then the sensor may just be bad?</p><p></p><p>When re-tightening the intake elbow, it caused the lower connector to pop off after I went to start it... car sounded cammed and boost gauge was showing like 4-5 for vacuum. Got it reconnected well, and started it and it was very smooth. Being the scientist I am, I can not point to any specific cause because I didn't isolate each change like I should have lol.</p><p></p><p>I wasn't able to get the wideband running correctly, as I assumed it used a LSU 4.9 sensor, and found out it's old enough it uses the LSU 4.2 sensor. I couldn't find any cheap alternatives that looked trustworthy so I guess I'm out $80 for a Bosch unit. If anyone has used a cheaper alternative with good results please let me know.</p><p></p><p>I ended the day installing the passenger fog light bulb and re-pinning the harness while my son "drove" his Cobra. Now it allows the fog lights to run with the corners only.</p><p></p><p>[ATTACH=full]1702044[/ATTACH] </p><p></p><p>[ATTACH=full]1702045[/ATTACH]</p></blockquote><p></p>
[QUOTE="01silverstang, post: 16615820, member: 21743"] Late to post but got a couple things done this weekend. My new OEM 02 sensors arrived, and I was able to get them both installed. The car still ran rough immediately after, but I'm assuming there is some amount of time for the PCM to start receiving the signal and then to make adjustments. I should have let it idle longer to verify, but got frustrated that it wasn't a more immediate change and moved on to other things I needed to do. I removed the drivers side PCV from the vacuum line as others recommended earlier. I still need to find a place to mount my catch can which is rather large, but I have everything I need for that once I figure it out. I also removed the intake tube from the throttle body and hit it with some carb cleaner to make sure the blades weren't sticking. It appeared to be entirely closed and while I did PB blast the idle stop screw, adjusting it didn't seem to make a visual difference, I would have assumed based on the 19.2 (%) reading from live data on my scanner that the blades would appear to be open at idle, but they didn't. After some adjustment the percentage dropped to 18.6 (%) which makes me wonder if the TPS is faulty, or needs adjustment. I know the earlier SN95 were adjusted by loosening the screws and moving it until it read proper voltage. If it's not adjustable then the sensor may just be bad? When re-tightening the intake elbow, it caused the lower connector to pop off after I went to start it... car sounded cammed and boost gauge was showing like 4-5 for vacuum. Got it reconnected well, and started it and it was very smooth. Being the scientist I am, I can not point to any specific cause because I didn't isolate each change like I should have lol. I wasn't able to get the wideband running correctly, as I assumed it used a LSU 4.9 sensor, and found out it's old enough it uses the LSU 4.2 sensor. I couldn't find any cheap alternatives that looked trustworthy so I guess I'm out $80 for a Bosch unit. If anyone has used a cheaper alternative with good results please let me know. I ended the day installing the passenger fog light bulb and re-pinning the harness while my son "drove" his Cobra. Now it allows the fog lights to run with the corners only. [ATTACH=full]1702044[/ATTACH] [ATTACH=full]1702045[/ATTACH] [/QUOTE]
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