01 SSEi Cough under throttle, FIXED! FINALLY!!!

[SSEiMan01]

That'd be fine with me, It'd have to be this week sometime in an afternoon, my last week of overnights and I'm leaving monday for CA... I was gunna call sinister monday and hopefully get it tuned this wekend... That's unless someone has personal contact with Kyle...

[gonzo4191]

i have his number.....

he tuned my bonneville too

[01bonneSC]

In all honesty I dont hear anything unusual with that.

[wake]

listen really closely its there..in the first vid he posted where it did it once, you can here it alot better than the second video..dont know why

EDIT: right about the 4-5 second mark you can hear it cough!

[Allmachtige]

Sorry I rarely check this forum now.

I'll scan for free, just come to Aurora. I'll PM you.

[Ken_W]

This is a shot in the dark, for if no other solutions turn up... could it be fuel-related? Bad gas? Time to replace fuel filter? Intermittent fuel injector problem? Have you used any fuel system cleaner lately?

Ken_W

[SSEiMan01]

This is a shot in the dark, for if no other solutions turn up... could it be fuel-related? Bad gas? Time to replace fuel filter? Intermittent fuel injector problem? Have you used any fuel system cleaner lately?

Ken_W

Possible, but its been happening for about a month, I've filled up numerous times. The fuel filter was done at 48k miles. And An Injector would throw a code even intermittently, I would think anyway.

[wake]

i still think your PCM is toasted and not throwing codes

[00Beast]

If his PCM was toasted it wouldn't run at all more than likely, or at least not well. Lots more things would also be tripping out.

[SSEiMan01]

Unless it is a small glitch in the programming, it wouldn't necessarily make the whole thing bad...

[SSEiMan01]

Just got back from Kyle's. Found some interesting things;
-Readings are goofy on some things, Kyle said he'll post with the scan, so I'll let him explain.
-Also, we tried swapping the PCM with one I got from Haro, and we could not get it to do a security relearn
-Basically we found the likely suspect to be the o2 sensor, I think somebody mentioned this earlier, live and learn... IF and this is a big if, I can find an AC Delco o2 sensor here in town tomorrow or at least by Sunday night, I will switch it out and see what happens... If not, I leave for California for two weeks on Monday, so I would just order it from RockAuto and have it waiting here for when I get back on the 19th. I have three places left to try one being, dare I say, the dealer. So I'm crossing my fingers, both that I can find this and that this fixes my issue.

[01bonneSC]

Hell Id just order from RA if you are gonna be gone for 2 weeks. Dont even waste your breath with the dealer.

[SSEiMan01]

it would be a last resort and an unlikely one... Theres a ma and pa parts store here in town that stocks pretty much all delco parts so hopefully they have one...

[01bonneSC]

it would be a last resort and an unlikely one... Theres a ma and pa parts store here in town that stocks pretty much all delco parts so hopefully they have one...

Probably over the cost of what you can get at RA.

[CoastieWight86]

First off, I am new to this site but not the car. I have an 01' NA with 130k on it and I am having pretty much the same issue. I have replaced a broken vacuum line, lower intake gaskets, upper manifold w/ gaskets, I did a full tune up with OEM plugs wires and ignition coils. Also a fuel filter and cleaning of the throttle body and MAF. All of this with no results, after speaking with a friend of mine who has been a mechanic for 15 years he has told me to check the torque converter. I haven't done this yet but it might be worth a shot.

[01bonneSC]

First off, I am new to this site but not the car. I have an 01' NA with 130k on it and I am having pretty much the same issue. I have replaced a broken vacuum line, lower intake gaskets, upper manifold w/ gaskets, I did a full tune up with OEM plugs wires and ignition coils. Also a fuel filter and cleaning of the throttle body and MAF. All of this with no results, after speaking with a friend of mine who has been a mechanic for 15 years he has told me to check the torque converter. I haven't done this yet but it might be worth a shot.

Do you know if your 02 sensor has been replaced?

[CoastieWight86]

No, it is original.

[01bonneSC]

No, it is original.

Good maintenance item to replace.

[SSEiMan01]

Not likely to fix the problem though. I just did mine and It didn't change anything.
Also I cannot for the life of me get the PCM I have to relearn to eliminate that possibility, I tried for about 2 hours and didn't get a thing out of it except aggravation.
Boy do I need this vacation, for many reasons that are causing me stress, one of them being stupid little issues like this.
*end rant*
I don't really know where to go from this point, but likely that it'll have to wait two weeks until I get back.

[CoastieWight86]

So, I was on my way up to the trans shop to have them take a look and another CEL popped up for a MAF sensor. I had only cleaned it when this code popped up a week ago. Well I swapped it in the parking lot of the local parts store and had them clear the code again. When I drove off, no more hesitation. What a relief.