kcjohnnyboy

I got the greddy bolt on turbo kit on my gsr. I removed the secondary butterfly plate and after the removal of that, at idle when it's at normal temperature it starts to putter. The air/fuel gauge jumps from 14 to 17 then back to 14 for a bit and back to somewhere around 17. Checked vacuum leaks and there weren't any. I got the kit tuned with a p28 w/ chrome.

I'm not really sure what is wrong....


Modified by kcjohnnyboy at 7:37 PM 9/18/2006

OBRJosh

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kcjohnnyboy &raquo;</TD></TR><TR><TD CLASS="quote">I got the greddy bolt on turbo kit on my gsr. I removed the secondary butterfly plate and after the removal of that, at idle when it's at normal temperature it starts to putter. The air/fuel gauge jumps from 14 to 17 then back to 14 for a bit and back to somewhere around 17. Checked vacuum leaks and there weren't any. I got the kit tuned with a p28 w/ chrome.

I'm not really sure what is wrong....</TD></TR></TABLE> You might be misfiring at low rpms

kcjohnnyboy

I was misfiring after I put in a basemap to go tune but after my first tune it went away cause it was too rich. After taking out the secondary butterflies it started puttering while idle. After the second tune, it still occurred and didn't go away.

kcjohnnyboy

what should i do to fix it?

OBRJosh

Check your plug gaps, cap rotor

kcjohnnyboy

i gapped the plugs originally 30 then put new plugs in at 28 and still does the same idling problem

kcjohnnyboy

changed the plug wires and found out they're not the plug wires

kcjohnnyboy

i asked my tuner if it was anything wrong with the tune at idle and he said he set it at 14 something air/fuel which is about where stock setting is. He suggested that I turn up the idle to see what happens.

I started my car and at cold temp it idles at about 1500 and then as it gets to normal operating temp, it gets to 500. Right when it gets to 500, it starts to putter again. Vacuum doesnt change, stays at 22. This time air/fuel goes from 14.5 to 15 something and sometimes to 16.8, at idle

sc4dr

Believe it or not, but my car will only idle smooth with 10.0 afrs. Anything above 11:1 and it starts to miss a little. I've messed with it over and over and this is just what the car wants.....You might want to add more fuel at idle, and see what happens.

kcjohnnyboy

would i need to go to the tuner for that? cause i have a stock fuel pressure regulator and i can't adjust the fuel.

kcjohnnyboy

does my tuner need to program the chip for idle or can i do it myself?

kcjohnnyboy

what you guys think i should do?

should i take it back to my tuner and have him set the air/fuel ration richer so it will stop idling weird?

or, should i just turn up the idle, and see what happens?

kcjohnnyboy

bump for some help

kcjohnnyboy

well i called my tuner today and he told me that it wasnt a tuning problem because he set the A/F at idle at stock setting. And, he had told me that it is probably something else wrong with my car, when i asked him if it needs to be retuned.

But, he told me to come up there and see what he can do by setting it richer at idle. If that doesn't solve the problem, I'm going to get it tuned somewhere else.

I'll let you guys know how it goes

kcjohnnyboy

went to the tuner today, tried to set the A/F bit richer at idle at about 13 and a bit less than 13, still purges, same symptoms, A/F jumps

not sure what else to do but go to a different tuner?

OBRJosh

Put the butterfly plate back on or get a diff manifold


Modified by OBRJosh at 4:00 PM 9/23/2006

kcjohnnyboy

well it never happened before i took out the butterfly plate, but after i did, it started this problem.

if i chose to go with a different manifold, which one could i use that will still bolt up to the greddy charge piping?

OBRJosh

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kcjohnnyboy &raquo;</TD></TR><TR><TD CLASS="quote">well it never happened before i took out the butterfly plate, but after i did, it started this problem.

if i chose to go with a different manifold, which one could i use that will still bolt up to the greddy charge piping?</TD></TR></TABLE> I dont think any manifld is gonna line up perfectly casue the gsr TB is mounted low, but you can get a blox, or skunk2 mani and modify the charge pipe

Tad

how much r u paying this guy for all this tunin?

enigma94

Mine ildes a little bit rough. But i also have my idle set at arround 900 so its not that bad. I'm pretty sure its my spark plug gab being very low. But the car runs great when i drive it so i dont worry about it.

kcjohnnyboy

you can say im paying about enough for tuning...not too expensive

my idle is kind of rough, it sorta like purges and you can feel it when you place your hand near the exhaust and feel the exhaust coming out...there's pulses when it idles rough

im going to get it tuned again probably by a different tuner to see if he can fix the problem. if that doesnt work, i'll just get a new manifold and modify the charge pipe to fit

sc4dr

Did you try running 10.0-11.0:1 afrs at idle? Just for sh*ts and giggles. You shouldnt have this problem with your IM unless you damaged something, or your IM gasket is leaking, and even then it doesnt sound like your problem.

At idle, does it pop every couple seconds? sounds like a slight miss?

Joseph Davis

I see a lot of that when ground system or charging system sucks goat ****. You can usually determine this empirically: if idle changes with headlights on, meaning when grounds change dynamically due to load or alternator bumps up voltage to keep up with demand then you need to tinker min allowable idle speed and correctly ground your engine/chassis so that the idle can be tuned in the first place.

I also see engines with issues idling like that. Time for a compression *and* a leakdown test, as you might not be creating enough compression at low engine speeds.

sc4dr

In my case, what do you think about the miss going away with more fuel? Compression's good, would a bad ground cause it?

kcjohnnyboy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sc4dr &raquo;</TD></TR><TR><TD CLASS="quote">

At idle, does it pop every couple seconds? sounds like a slight miss?</TD></TR></TABLE>

yeah at idle, yes it does seem like it, not sure what it can be though cause i checked the gaskets and all nothing bad still all good

and checked my compression few days ago and its at 200 all the way across