Speed density question
08-18-2012, 01:53 PM
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Speed density question I have a 408 nitrous car that recently was tuned to speed density, ran fine for awhile but now is acting like it would If it had a bad maf it spits and sputters in the low rpm but runs fine wipe open , I get a p0102 for a maf low voltage , would that have an effect on the running condition or is it common for those codes to come up cause the maf is gone ? Thank you for any info you can provide
08-19-2012, 11:27 PM
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I have a 408 nitrous car that recently was tuned to speed density, ran fine for awhile but now is acting like it would If it had a bad maf it spits and sputters in the low rpm but runs fine wipe open , I get a p0102 for a maf low voltage , would that have an effect on the running condition or is it common for those codes to come up cause the maf is gone ? Thank you for any info you can provide
take it back to the tuner and have him delete that out and let him know about the idle issue so he can get it ironed out. dont wait. if he cannot do it get a partial or full refund and go to someone who can.
dont wait till its too late.
08-20-2012, 05:44 AM
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You can turn off the MIL for a P0102, but you will always get the code with speed density - that's not the issue... Is it an open loop, closed loop, or semi-open loop tune? Might be an O2 sensor issue, MAP sensor issue, or other - hard to say without seeing a log...
