What atap parameters to check to see if my pcm is causing my converter to unlock?
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Joined: Nov 2001
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From: Victoria, TX
Re: What atap parameters to check to see if my pcm is causing my converter to unlock? Definitely check out misfire codes. Misfires will unlock the converter. Also check the MAP sensor readings. High readings are a sign of low vacuum, which the pcm will sense as high load and unlock your converter too.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Re: What atap parameters to check to see if my pcm is causing my converter to unlock? [quote]Originally posted by Patrick G:
<strong>Definitely check out misfire codes. Misfires will unlock the converter. Also check the MAP sensor readings. High readings are a sign of low vacuum, which the pcm will sense as high load and unlock your converter too.</strong><hr></blockquote>
If I am having a misfire, what will the code read?
And what would a high/low reading be for the MAP? I know how to get all these readings, but have no idea what the #'s mean, if they're good or bad. Someone needs to write a book "AutoTap for Dummies" <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" />
<strong>Definitely check out misfire codes. Misfires will unlock the converter. Also check the MAP sensor readings. High readings are a sign of low vacuum, which the pcm will sense as high load and unlock your converter too.</strong><hr></blockquote>
If I am having a misfire, what will the code read?
And what would a high/low reading be for the MAP? I know how to get all these readings, but have no idea what the #'s mean, if they're good or bad. Someone needs to write a book "AutoTap for Dummies" <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" />
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Joined: Nov 2001
Posts: 417
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From: Anderson, SC
Re: What atap parameters to check to see if my pcm is causing my converter to unlock? [quote]Originally posted by 11 Bravo:
<strong> Someone needs to write a book "AutoTap for Dummies" <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" /> </strong><hr></blockquote>
AMEN!
<strong> Someone needs to write a book "AutoTap for Dummies" <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" /> </strong><hr></blockquote>
AMEN!
What atap parameters to check to see if my pcm is causing my converter to unlock? If you've read my other post then you know I have just started having problems with my Vig unlocking. P.I. has been reading the post and suggested that I check all my sensor readings to see if my cpu is causing the problem, and not the converter. Exactly what parameters should I look at and what should they read? Someone said a misfire could cause the converter to unlock. I don't have an SES light. What exactly should I look at to see if that is the cause? Or something else? I've only had atap for about a month, so I don't know what a lot of the parameters are for. I do know that all my temperture readings are where they should be, so it must be something else.