Woo hoo! new coil fixed my truck! now 1 more issue..

[huggles]

Right around 0 vaccuum/boost it has a slight stumble, I have the ultimate V9 if this helps. Has anyone else experienced this, and is there any fix to it?

I used the search and could not find any info on this... thanks for all the help and advice so far, the syty.net forums are the best!

 

[socalblue]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

Have you checked for vacuum leaks?

 

[huggles]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

Have you checked for vacuum leaks?

Yes, I thought I went over it with a fine tooth comb, the odd thing is that it is never halfway running bad. It's either sputtering all over and barely drivable, then drives perfect for a couple of seconds, and then back to sputtering. Replacing the coil made a huge difference.

Also the 02 sensor jumps to 0.00v and reads lean when it sputters.... which makes me think it's a fuel pump/pressure problem I have as well...

 

[jslezak83]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

so get a gauge, and check the pressure.

 

[willyson]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

Right around 0 vaccuum/boost it has a slight stumble, I have the ultimate V9 if this helps. Has anyone else experienced this, and is there any fix to it?

I used the search and could not find any info on this... thanks for all the help and advice so far, the syty.net forums are the best!

im assuming you have 3bar. do you have an afpr? you may need to bump up the fp if you have not already.

 

[huggles]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

im assuming you have 3bar. do you have an afpr? you may need to bump up the fp if you have not already.

Yes I have an AFPR, to richen it up, do I loosen it or tighten it? I'm getting loosen the nut on the top?

 

[2fast4u]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

Yes, I thought I went over it with a fine tooth comb, the odd thing is that it is never halfway running bad. It's either sputtering all over and barely drivable, then drives perfect for a couple of seconds, and then back to sputtering. Replacing the coil made a huge difference.

Also the 02 sensor jumps to 0.00v and reads lean when it sputters.... which makes me think it's a fuel pump/pressure problem I have as well...

Might try changing out the ignition control module.

 

[blk00z28]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

Yes I have an AFPR, to richen it up, do I loosen it or tighten it? I'm getting loosen the nut on the top?

Tighten it I believe.. Once you get a gauge on the rail and can see the pressure its easy to adjust.

What injectors are you running?

 

[STORM TROOPER]

Re: Woo hoo! new coil fixed my truck! now 1 more issue..

Right around 0 vaccuum/boost it has a slight stumble, I have the ultimate V9 if this helps. Has anyone else experienced this, and is there any fix to it?

I used the search and could not find any info on this... thanks for all the help and advice so far, the syty.net forums are the best!

does this chip piggy back?the chip i have does and w/out the other chip it runs like sh**