f swapped 97 civic hx iacv circuit malfunction p1508
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f swapped 97 civic hx iacv circuit malfunction p1508
hey h-t. done a ton of research on this subject and probing wires. here is some of what i found. i am getting p1508.
no vacuum leaks that i know of. engine stalls when whole throttle body is plugged.
as far as i know all other sensors supported.
timing is on point.
the idle is low and somewhat steady
if i mash the gas, it misfires and has no power plus jerking.
if i ease on the throttle its not bad.
if i barely have throttle applyed the idle then fluctuates.
have done all the electrical tests on iacv and it checks out. my question here is how much voltage is supposed to be coming out of that a12 pin from the ecu? blk/blu wire. obd2a. im getting 1.2v out of that pin loc with it plugged in ecu and ignition turned to on2. also only getting that reading when i probe the plug. one lead on yel/blk and one on blk/blu. my multimeter is in the 12v bat position.
anyway, has my ecu been shorted?
any help will be appreciated!
no vacuum leaks that i know of. engine stalls when whole throttle body is plugged.
as far as i know all other sensors supported.
timing is on point.
the idle is low and somewhat steady
if i mash the gas, it misfires and has no power plus jerking.
if i ease on the throttle its not bad.
if i barely have throttle applyed the idle then fluctuates.
have done all the electrical tests on iacv and it checks out. my question here is how much voltage is supposed to be coming out of that a12 pin from the ecu? blk/blu wire. obd2a. im getting 1.2v out of that pin loc with it plugged in ecu and ignition turned to on2. also only getting that reading when i probe the plug. one lead on yel/blk and one on blk/blu. my multimeter is in the 12v bat position.
anyway, has my ecu been shorted?
any help will be appreciated!
#2
Re: f swapped 97 civic hx iacv circuit malfunction p1508
Making new members post twice in the technical section of the forum before starting a new thread, when new members probably don't have much technical knowledge of their new car, is just going to end up in pointless posts like this, so that I have enough posts to actually start a useful thread.
Sorry for spamming your thread dude, but it was necessary
Have a nice day.
Sorry for spamming your thread dude, but it was necessary
Have a nice day.
#3
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Join Date: Nov 2012
Location: central ohio
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Re: f swapped 97 civic hx iacv circuit malfunction p1508
Making new members post twice in the technical section of the forum before starting a new thread, when new members probably don't have much technical knowledge of their new car, is just going to end up in pointless posts like this, so that I have enough posts to actually start a useful thread.
Sorry for spamming your thread dude, but it was necessary
Have a nice day.
Sorry for spamming your thread dude, but it was necessary
Have a nice day.
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