Just had my LTs, y-pipe, and catback installed

**98TransAmWs-6** · 09-05-2010, 08:56 PM

Originally Posted by bberretta

But he said that an injector was clogged, therefore he would be running lean. No fuel coming out = lean. No spark would equal rich.

Also I had a vacuum leak so that would make it lean too.

**bberretta** · 09-05-2010, 09:28 PM

Originally Posted by 98TransAmWs-6

Also I had a vacuum leak so that would make it lean too.

Very true. I'd still test the coil- it's strange the FI would spontaneously be clogged when the headers were done.

**98TransAmWs-6** · 09-05-2010, 09:34 PM

Originally Posted by bberretta

Very true. I'd still test the coil- it's strange the FI would spontaneously be clogged when the headers were done.

Well I already switched it with a coil I know is good and it still misfires on the same cylinder and same with the wire and replaced the plug. Hopefully everything will be fixed on tuesday. The shop couldn't give me prices for the fix until then.

**rajiv1998** · 09-06-2010, 06:09 AM

I find it strange that the injector got clogged right after a header swap. Might as well replace them all when you have them out. Your probably looking at $150-200 in labor. You have to pull the intake out don't you? Unless there is a way of doing it while it's on the car, but I never heard of it.

**Too Fast** · 09-06-2010, 06:47 AM

Originally Posted by bberretta

Very true. I'd still test the coil- it's strange the FI would spontaneously be clogged when the headers were done.

It was most likely a coincidence. Headers should have nothing at all to do with injector problems.

**98TransAmWs-6** · 09-06-2010, 07:03 AM

Originally Posted by Too Fast

It was most likely a coincidence. Headers should have nothing at all to do with injector problems.

Well I'll see on tuesday if that is the fix. I thought it was weird that it came up after the install.

**98TransAmWs-6** · 09-07-2010, 07:49 AM

Does this cost to fix my problem sound a little high, $800 to fix a fuel injector and the vacuum line? Thats the quote the auto shop I brought my car to estimated.

**35th-ANV-SS** · 09-07-2010, 09:47 AM

Originally Posted by Too Fast

It was most likely a coincidence. Headers should have nothing at all to do with injector problems.

Either a coincidence or a shop guy just saying it is the injector when something else it going on, which would be a lot cheaper to fix.......like a bad spark plug!

**bberretta** · 09-07-2010, 10:11 AM

It's a big job, but I'd be 100% positive before I go about paying $800 for something you may not need.

Let me get this straight- you've swapped the coil (not just put the coil wire on another coil which would fire it out of time), tested the coil wire, and tested the plug and you have spark at all three place, right? Sorry if I sound like I'm harping on this, but I really don't want you spending $800 and they come back and say that it'll be another $500 because there are ignition problems as well.

**rajiv1998** · 09-07-2010, 11:19 AM

$800!!! What a rip off. Just swap out the intake yourself and save $$. Go to ls1howto and read the write up. Once the intake comes off, just disconect the fuel rails and out come the injectors. Dude $800 is a full days worth of labor. You can have a cam installed for less than $800. If you did the header/exhaust install by yourself, you shouldnt have much of a problem with the injectors.

I would narrow it down to EXACTLY whats causing the problem before throwing away hundreds, maybe even thousands of dollars. Find someone with auto-tap or a good scanner and have them run a full scan on your car. Do a compression/leak down test and see if the cylinder is actually not working. All 8 cylinders should read within 10% of each other. Again I dont see how it would be your injectors considering they were fine before the install. Did you get your EGR/AIR block off plates and everything if you bought headers without EGR/AIR provissions???

**98TransAmWs-6** · 09-07-2010, 12:19 PM

Originally Posted by bberretta

It's a big job, but I'd be 100% positive before I go about paying $800 for something you may not need.

Let me get this straight- you've swapped the coil (not just put the coil wire on another coil which would fire it out of time), tested the coil wire, and tested the plug and you have spark at all three place, right? Sorry if I sound like I'm harping on this, but I really don't want you spending $800 and they come back and say that it'll be another $500 because there are ignition problems as well.

Yes I swapped the coil I haven't had a test to see if I am getting spark but I switched the actual coil, wires, and replaced the spark plug. I also tested compression and it is exactly as it should be. BTW hell no I am not paying them to do that I am going to replace the vacuum line and the fuel injector myself. I have access to a military base that has lifts and they will help you with work if not do it and not charge much since they are funded by the government. Also is it bad to run the engine when it has a misfire and the engine light blinks? Cause the base is a little bit away not really far but its like 20 miles away or so.

$800!!! What a rip off. Just swap out the intake yourself and save $$. Go to ls1howto and read the write up. Once the intake comes off, just disconect the fuel rails and out come the injectors. Dude $800 is a full days worth of labor. You can have a cam installed for less than $800. If you did the header/exhaust install by yourself, you shouldnt have much of a problem with the injectors.

I would narrow it down to EXACTLY whats causing the problem before throwing away hundreds, maybe even thousands of dollars. Find someone with auto-tap or a good scanner and have them run a full scan on your car. Do a compression/leak down test and see if the cylinder is actually not working. All 8 cylinders should read within 10% of each other. Again I dont see how it would be your injectors considering they were fine before the install. Did you get your EGR/AIR block off plates and everything if you bought headers without EGR/AIR provissions???

I didn't do the install this time myself but I have done it myself before, I bought ones and they didn't fit even though they were suppose to so I had to buy another system. Yea $800 is close to what it cost to have my whole system installed. No I kept all my EGR/AIR stuff to keep it street legal and it is all hooked up correctly. This may sound like a stupid question but I don't really know much about the AIR/EGR but is it possible that the leak in the vacuum line caused the injector to get clogged? Oh btw I was running open headers before I got everything installed I don't know if that makes a difference in getting a clogged fuel injector. Don't see how it would but you never know.

**Too Fast** · 09-07-2010, 04:39 PM

Originally Posted by 98TransAmWs-6

Yes I swapped the coil I haven't had a test to see if I am getting spark but I switched the actual coil, wires, and replaced the spark plug. I also tested compression and it is exactly as it should be. BTW hell no I am not paying them to do that I am going to replace the vacuum line and the fuel injector myself. I have access to a military base that has lifts and they will help you with work if not do it and not charge much since they are funded by the government. Also is it bad to run the engine when it has a misfire and the engine light blinks? Cause the base is a little bit away not really far but its like 20 miles away or so.

If it is indeed a misfire from a clogged injector, than no you won't do any real harm. The PCM doesn't know why it is misfiring, only that it is. If it were a no-spark issue, than yes it could cause a convertor melt down from over fueling the convertor. But it seems like you have a no-spark issue ruled out.

I didn't do the install this time myself but I have done it myself before, I bought ones and they didn't fit even though they were suppose to so I had to buy another system. Yea $800 is close to what it cost to have my whole system installed. No I kept all my EGR/AIR stuff to keep it street legal and it is all hooked up correctly. This may sound like a stupid question but I don't really know much about the AIR/EGR but is it possible that the leak in the vacuum line caused the injector to get clogged? Oh btw I was running open headers before I got everything installed I don't know if that makes a difference in getting a clogged fuel injector. Don't see how it would but you never know.

And no, I've never run into a vacuum leak causing a clogged injector. And running open headers shouldn't cause it either. I think it's just some bad timing on the injector going bad.

**bberretta** · 09-07-2010, 05:21 PM

I would try a professional FI cleaning (not just the pour in your tank stuff, but one where they hook up the pressurized tank to your fuel rail) before spending the $800 on one injector. You can replace all 8 injectors for a little less than that if you did the labor yourself!

**98TransAmWs-6** · 09-07-2010, 05:58 PM

Originally Posted by bberretta

I would try a professional FI cleaning (not just the pour in your tank stuff, but one where they hook up the pressurized tank to your fuel rail) before spending the $800 on one injector. You can replace all 8 injectors for a little less than that if you did the labor yourself!

I am going to do it all myself since I am not going to pay that money when I can get an injector for about $100-130 or so and the vacuum line for $170 hopefully replacing both will fix the issue.

**bberretta** · 09-07-2010, 07:29 PM

Originally Posted by 98TransAmWs-6

I am going to do it all myself since I am not going to pay that money when I can get an injector for about $100-130 or so and the vacuum line for $170 hopefully replacing both will fix the issue.

Exactly. I think you gave us all a bit of sticker shock with that quote!

**98TransAmWs-6** · 09-07-2010, 08:02 PM

Originally Posted by bberretta

Exactly. I think you gave us all a bit of sticker shock with that quote!

Well I just wanted to make sure I was right in thinking it's a crazy price.

**Too Fast** · 09-08-2010, 02:45 AM

Being an ASE Master, L1 certified tech has saved me untold $10,000s over the years, I'm positve! If you can do some work yourself, you can save money.

What we don't like is when people try to do something themself, then expect a bailout from us, when it would have been way easier for us do the job had someone not broken something/screwed it up then come to us and say can you fix it.

**MeGoFast** · 09-08-2010, 04:57 AM

If I'm current on your issue, I understand your still getting a code of misfire on #6 and a shop says you have a clogged injector/bad. Why not flip flop the #6 injector with another and see if the code changes to the other piston you move it to prior to purchasing another injector?

**98TransAmWs-6** · 09-08-2010, 05:42 AM

Originally Posted by MeGoFast

If I'm current on your issue, I understand your still getting a code of misfire on #6 and a shop says you have a clogged injector/bad. Why not flip flop the #6 injector with another and see if the code changes to the other piston you move it to prior to purchasing another injector?

I will probably try that once I pick up my car from the shop.

**98TransAmWs-6** · 09-08-2010, 03:24 PM

I got my car back today and when I started it at the shop the engine light was on. I figured they deleted the codes. There was no rough idle like before and no cylinder miss that I could hear. Almost all the way home then the engine light came back on and I started to hear the miss but the rough idle didn't come back. Once I got home I scanned the car and only the p0306 code came up. My question is do I still have a vacuum leak and will the codes come back or are they gone for good?