ls1 cranks, but wont start
02-26-2008, 11:39 PM
#21
if the crank sensor was bad you wouldnt have any fuel inj pulse,, you need to check the power and ground at the main coil harness conector on each valve cover, there should be a main power wire(pink, hot in run and crank) and a ground at both of the connectors where the hook on to the coil harness
02-27-2008, 12:51 AM
#22
02-27-2008, 02:46 PM
#23
update: i swapped the coil packs, i put the drivers side on the pass. side and pass. side on drivers side
i go to crank it up and it makes a slight attempt to fire up. i spray a little starting fluid in the TB and it fires right up- after 2 seconds of good rev the idle drops down under 500rpm. i havent yet check the main plug with a voltmeter(waiting on a car to go get one)
i go to crank it up and it makes a slight attempt to fire up. i spray a little starting fluid in the TB and it fires right up- after 2 seconds of good rev the idle drops down under 500rpm. i havent yet check the main plug with a voltmeter(waiting on a car to go get one)
02-27-2008, 03:25 PM
#25
yea, unless its possible for them to come back some how lol. i've had no problems for the past 7 months w/ it. heres the video, do yall think maybe it could be camshaft position sensor????
heres the video of it running http://www.youtube.com/watch?v=qeq3u68rCX4
heres the video of it running http://www.youtube.com/watch?v=qeq3u68rCX4
02-27-2008, 03:39 PM
#28
yea, unless its possible for them to come back some how lol. i've had no problems for the past 7 months w/ it. heres the video, do yall think maybe it could be camshaft position sensor????
heres the video of it running http://www.youtube.com/watch?v=qeq3u68rCX4
heres the video of it running http://www.youtube.com/watch?v=qeq3u68rCX4
If you think that it's the sensors . . . I have a few extras that you're welcome to.
02-27-2008, 04:21 PM
#33
The MAF tells the PCM how much air is coming in . . and that then tells the injectors how much fuel do dump in. You really need to have it.
The IAT sensor is in there as well.
I'm not sure if a truck MAF will work . . . . but you're going to need it regardless
02-27-2008, 11:10 PM
#36
. I have found that it makes no difference on my car when both are properly dialed in. Due to the size of my cam and the limitations of the 98 PCM, I run without a MAF. The cost of the tune will depend on the tuner and the amount of time required to get it right (which is usually directly proportionate to how radical the setup may be).
03-07-2008, 04:39 PM
#37
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$50) still no spark!good to know you finally fixed the problem but how could a bad maf effect spark?
i could understand if it wasnt starting cause your afrs were all over the place but cant see why you wouldnt have been getting spark
