Having a problem... I'm good but not this good.
05-08-2018, 07:16 AM
#1
Staging Lane
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Having a problem... I'm good but not this good. Let me start with mod list.
243s ported polished and a valve job done with new seals
new valvetrain parts
custom grind comp cam
fast 92mm intake
lengenfelter 92mm throttle body
k&n cold air intake
kooks header to a corsa catless catback
melling 10295 oil pump
walbro 255 pump with new harness and hard wire kit
diff bushing and cradle bushing from creative steal along with a 07 diff
creative steal motor mounts and trans mounts
new spoiler front bumper and hood.
New headlights, HIDs,
$1k in paint correction and ceramic coating.
Paragon Autosport splitter
Stage 2 McLeod rxt twin disc clutch with remote bleader.
So problem is she seems to be missing. Took the v to dr appointment, and came out to it running poorly. Very rich fuel smell at idle. But idles fine. As soon as I give throttle she's falling on her face. Shakes whole car. Especially between 1200-3000 rpm. No codes. No lights. This is a first for me. Starts fine revs fine. Does it no matter what gear. Does it in neutral. So had a buddy hook up his hp tuner. Found a code p1626. Because my code reader couldn't find anything. And Yes I did my research on p1626. But it's doing the complete opposite of what the code is supposed to do. It's adding 15-20% more fuel using short term fuel trims. The tune has the long term fuel trims disabled. Therefore, at wide open it's running way lean. So next step is checking fuel pressure. But in the meantime I figured I would post here and see if there's anything else I should look too. She's never acted up before.
243s ported polished and a valve job done with new seals
new valvetrain parts
custom grind comp cam
fast 92mm intake
lengenfelter 92mm throttle body
k&n cold air intake
kooks header to a corsa catless catback
melling 10295 oil pump
walbro 255 pump with new harness and hard wire kit
diff bushing and cradle bushing from creative steal along with a 07 diff
creative steal motor mounts and trans mounts
new spoiler front bumper and hood.
New headlights, HIDs,
$1k in paint correction and ceramic coating.
Paragon Autosport splitter
Stage 2 McLeod rxt twin disc clutch with remote bleader.
So problem is she seems to be missing. Took the v to dr appointment, and came out to it running poorly. Very rich fuel smell at idle. But idles fine. As soon as I give throttle she's falling on her face. Shakes whole car. Especially between 1200-3000 rpm. No codes. No lights. This is a first for me. Starts fine revs fine. Does it no matter what gear. Does it in neutral. So had a buddy hook up his hp tuner. Found a code p1626. Because my code reader couldn't find anything. And Yes I did my research on p1626. But it's doing the complete opposite of what the code is supposed to do. It's adding 15-20% more fuel using short term fuel trims. The tune has the long term fuel trims disabled. Therefore, at wide open it's running way lean. So next step is checking fuel pressure. But in the meantime I figured I would post here and see if there's anything else I should look too. She's never acted up before.
05-08-2018, 09:04 AM
#2
Try here for some starters:
http://www.3800pro.com/forum/dtcs-pr...-received.html
https://www.ls2.com/boggs/dtcs/DTC%20P1626.htm
Try the bottom one first...
http://www.3800pro.com/forum/dtcs-pr...-received.html
https://www.ls2.com/boggs/dtcs/DTC%20P1626.htm
Try the bottom one first...
05-08-2018, 11:06 AM
#3
I think when the ceramic coating was done it fouled your spark plugs. Or maybe got the wires crossed when the hids were installed. Really, was all that pointless info needed? Rule of thumb, if you need help, put the facts and info that is going to be relevant, otherwise your making people read a bunch of stuff for nothing and they lose interest and move on to the next thread. Just like I’m doing now.....
05-08-2018, 04:53 PM
#7
try raising some kids. You’ll get real familiar with lecturing. lol. Seriously tho. Do you really think all that bullshit about the detailing of the car. The shifter. The head light bulbs is really needed to be included in the post to give info on diagnosing a engine problem? I don’t.
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05-08-2018, 10:19 PM
#9
Staging Lane
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Maybe I should have left that stuff out, however this is not my forum I am a part of. And typing everything out over and over again is a royal pain on a Mobil phone. Anyhow I apologise for "non performance adders" I listed. I copied and pasted what all I did. To help save me time. I'm sure you and everyone else has a list made. I should've deleted those. Again I apologise. In the same aspect I didn't post here to be lectured. I posted because I need help. And if I continue to be lectured I'll leave. I have 2.5yr old who lectures me enough as well as my wife. I don't think I need anymore. 👌
05-08-2018, 10:38 PM
#10
Maybe I should have left that stuff out, however this is not my forum I am a part of. And typing everything out over and over again is a royal pain on a Mobil phone. Anyhow I apologise for "non performance adders" I listed. I copied and pasted what all I did. To help save me time. I'm sure you and everyone else has a list made. I should've deleted those. Again I apologise. In the same aspect I didn't post here to be lectured. I posted because I need help. And if I continue to be lectured I'll leave. I have 2.5yr old who lectures me enough as well as my wife. I don't think I need anymore. 👌
no worries.
What id Check:
for off see if you have a single cylinder misfiring. Got you a squirt bottle of water and crank the car. Immediately spray each header tube with a couple shot of water. It should evaporate quickly. If the water lingers on the tube, there’s a problem. Likely a burnt plug wire. A plug wire not snapped in all the way. It a fouled or defective spark plug. Non of those seem to be the culprit? Well maybe it’s in your tune. If it ran fine and all of a sudden your having an issue, my money is on plug wires.
05-09-2018, 06:39 AM
#11
Have some of those and a wife.
No sweat. I’d follow the water bottle too. Could be a coil pack but I’m not sure the ones on this car go bad all that much. Some cars they’re the first thing you’d check
Maybe I should have left that stuff out, however this is not my forum I am a part of. And typing everything out over and over again is a royal pain on a Mobil phone. Anyhow I apologise for "non performance adders" I listed. I copied and pasted what all I did. To help save me time. I'm sure you and everyone else has a list made. I should've deleted those. Again I apologise. In the same aspect I didn't post here to be lectured. I posted because I need help. And if I continue to be lectured I'll leave. I have 2.5yr old who lectures me enough as well as my wife. I don't think I need anymore. 👌
05-09-2018, 07:44 PM
#12
Staging Lane
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I didn't think they went bad either. anyways i just ordered some tr6s. I gotta remove the coils anyway to replace plugs. I understand that that some guys do and don't. I will test the coils while I have them off. Does anyone have the info on what they should read on a ohms meter?
05-09-2018, 07:50 PM
#13
Staging Lane
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Also I should add I get a weird sound on decel. Doesn't matter if clutch is engaged or disengage. Doesn't do it under load. Doesn't do it on a rev up. Engine sounds good. The this sound / rattle starter when this issue with the motor started. The best way to describe sound is as if you ran over a pop can. Happens in neutral as well. Moving or not. Any ideas?
05-09-2018, 08:56 PM
#15
Staging Lane
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I know it's a short video and hard to hear. But I can't reenact it. Does it when it wants too. I have 33 16 sec videos saved and that was the only time it did while trying to make it happen on video. Yesterday I started it up let idle to operating temp then blipped the throttle and did it. So hard to get it to do it. But that's the sound.
05-10-2018, 09:38 AM
#16
Sounds like an exhaust rattle or heat shield loose perhaps. With your rear, suspension and mounts, it ain't a quiet smooth Caddy any more. You improved handling and maybe some component longevity but at a cost: Adding poly will reveal noises that were being dissipated by the rubber. If it's not getting more frequent and louder, I wouldn't sweat it.
05-14-2018, 07:31 PM
#18
TECH Apprentice
Doesnt corsas exhaust pipes or the resonator when it gets wet it makes funny noise, i thought i seen a few people with that problem before? Also maybe that loose heat sheild sound could be your driveshaft hitting the heat sheild cause the carrier bearing is worn?
05-15-2018, 07:50 AM
#19
Check your push rods. I put a motor together one time with link bar lifters and no lifter trays and I ended up not seating one of the pushrods in the lifter seat. Car was running slightly off and couldn’t figure it out for a few days but that was the culprit
05-15-2018, 07:56 AM
#20
Teching In
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For the rattle sound -What about the little crossmember/bracket that is about halfway between diff and trans. It's a lightweight bracket, don't know it's real purpose. After I installed my china headers (knockoff pacesetters I believe), my corsa exhaust would bottom out/touch that spot and make a rattle at certain rpms and loads. I think my sounds lasted a bit longer than your quick snap..but maybe? Bending the hangers so the system had some play stopped that.