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prob:hesitation/surge at 2500-3000rpm

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Old 10-13-2009, 07:09 PM
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shaner86
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Default prob:hesitation/surge at 2500-3000rpm
i have a 1988 mustang lx 5.0 and have all new ignition system but have a hesitation/surge at 2500-3000rpms and dont know what is causing it....any ideas?
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Old 10-13-2009, 07:40 PM
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FivePointOhh
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is your timing set correctly? did you remove your distributor?
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Old 10-13-2009, 08:30 PM
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zebo87
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+1 on timing check.
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Old 10-14-2009, 02:14 AM
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i have tried timing and even went from top dead center for new distributor after installing it.....have heard maf causing issue is it possible?
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Old 10-14-2009, 08:35 AM
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well clean the maf and try again. best bet is to pull codes koeo/koer self tests.
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Old 10-14-2009, 05:10 PM
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lxman1
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Yep, could be a dirty MAF or possibly a bad TPS sensor. Definitely do the code check first.
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Old 11-02-2009, 04:15 AM
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shaner86
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whats the fuel pressure suppose to be at during Idle and at higher rpms?
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Old 11-02-2009, 05:41 PM
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redemption
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+1 on tps check at .99
vaccuum leaks and
IAC solenoid cleaning
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Old 03-30-2010, 07:59 PM
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is there anyway to check a TPS to see if its bad?
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Old 03-30-2010, 08:06 PM
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zebo87
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fuel press is supposd to be around 35 or so at idle. did you ever clean your maf. i was having this same prob and it was the maf.
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