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SN95 Cobras
P1516 code keeps coming back...
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<blockquote data-quote="98cobrawilsonville" data-source="post: 16559011" data-attributes="member: 200392"><p>So I have this new to me 98 Cobra with 60,100 miles. Obviously the car sat quite a bit given the low miles. I have a code reader and all I find is this due to imrcs not opening properly. This is what I have done so far:</p><p></p><p>- Cleaned iac valve, it sure had carbon in there, car runs smoother for sure </p><p>- Cleaned mass air flow sensor </p><p>- Replaced pcv valve </p><p>- Replaced a hose that looked too cracked around the intake </p><p>- Brand new K&N filter </p><p>- Lubricated the rear actuators and cables for both imrcs behind the engine </p><p></p><p>I have put sea foam both in the engine and the fuel (quite a bit in the fuel). The car pulls like a beast both under 3K rpms and over 3500. My understanding is imrcs open after 3500 Rpms, again the car pulls like crazy as everything works as it should. Yesterday I drove the car for 2 hours hard after lubricating the cables and no light and I thought well must be good now. Well today I drove it 20 mins and boom light came back, checked code and same code. What do you suggest? Should I just take it apart and clean the imrcs? I was also thinking of doing the old sea foam trick, have the car suck a bottle of sea foam from the intake, turn off the car, let it sit for 20 to 30 minutes and then start up and idle it for 5 mins and then drive it... Looking for feedback and advice.</p><p></p><p>Thank you guys!</p></blockquote><p></p>
[QUOTE="98cobrawilsonville, post: 16559011, member: 200392"] So I have this new to me 98 Cobra with 60,100 miles. Obviously the car sat quite a bit given the low miles. I have a code reader and all I find is this due to imrcs not opening properly. This is what I have done so far: - Cleaned iac valve, it sure had carbon in there, car runs smoother for sure - Cleaned mass air flow sensor - Replaced pcv valve - Replaced a hose that looked too cracked around the intake - Brand new K&N filter - Lubricated the rear actuators and cables for both imrcs behind the engine I have put sea foam both in the engine and the fuel (quite a bit in the fuel). The car pulls like a beast both under 3K rpms and over 3500. My understanding is imrcs open after 3500 Rpms, again the car pulls like crazy as everything works as it should. Yesterday I drove the car for 2 hours hard after lubricating the cables and no light and I thought well must be good now. Well today I drove it 20 mins and boom light came back, checked code and same code. What do you suggest? Should I just take it apart and clean the imrcs? I was also thinking of doing the old sea foam trick, have the car suck a bottle of sea foam from the intake, turn off the car, let it sit for 20 to 30 minutes and then start up and idle it for 5 mins and then drive it... Looking for feedback and advice. Thank you guys! [/QUOTE]
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P1516 code keeps coming back...
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