View Full Version : Help, need some ideas. car keeps stalling when I come to stop or slow down abruptly..
Yooformula
05-19-2010, 04:55 PM
For whatever reason, since it got warm out the last day or so the car has been stumbling and had a rough idle when I come to a stop. Today for whatever reason the damm thing would stall when I would come to a stop light or slow down to make a sharp turn. This was going on with/without the a/c btw. Any ideas? plugs looked fine, air filter and maf were clean.
0TransAm0
05-19-2010, 05:22 PM
will it idle at all in park? or is it just when you are driving?
Yooformula
05-19-2010, 06:11 PM
it will idle in neutral but the idle is sometimes all over the place. the problem almost always happens when slowing down or coming to a stop and I take it out of gear.
Reverend Cooper
05-19-2010, 06:39 PM
vacuum leak some wher?
GTSLOW
05-19-2010, 07:56 PM
What kind of car? :goof
Prince Valiant
05-19-2010, 08:15 PM
any CEL's?
Coops Brother
05-19-2010, 08:26 PM
Stuck open EGR?
Karps TA
05-19-2010, 08:53 PM
TPS sensor out of whack?
wrath
05-19-2010, 08:58 PM
Does it do it when it's cold?
Reverend Cooper
05-19-2010, 09:36 PM
im with brian egr sounds good
Bobby "Big Daddy" Flay
05-19-2010, 10:20 PM
mass air flow?
Yooformula
05-20-2010, 12:31 AM
no cel lights at all, there is no egr system and the symptoms only occur when its warmed up.
wrath
05-20-2010, 06:57 AM
Sounds like a MAP sensor to me.
TraceDaddy
05-20-2010, 08:51 AM
Weird. I'm having the same issue.
I had an earlier thread where I was running lean. Took it to Marv and he cleared that up, pumped up output a bit and it runs great once the RPM are above 1200 or so. I haven't stalled completely, but when I first depress the clutch, RPM will drop to below 500. If I sit for a while it'll bounce back up to around 750 (where it should be) but it'll waiver a bit.
My plugs, air filter and MAF are clean as a whistle as well. Marv sent me a slightly modified version of the tune. Hopefully I can try it out tonight before ball. If it works I'll find out what he did.
MoCkiN U
05-20-2010, 09:39 AM
i was having a similar issue in my stang and found out then when cleaning the engine bay the day before I had knocked the sensor plug off the MAF sensor and didnt even realize it. Car would spit and sputter and stall when stopped.
TraceDaddy
05-20-2010, 09:48 AM
If that happens on my car it won't even start. I know this. After replacing the intake tube I forgot to reconnect it once.
Yooformula
05-21-2010, 12:42 AM
wtf! cleaned out the iac and now the fucker wont idle less than 1500 rpms!
BadAzzGTA89
05-21-2010, 07:30 AM
Did you take it out to clean it? The IAC sounded like the problem.
BR3W CITY
05-21-2010, 08:54 AM
how did you clean it?
When I had my srt4 the iac would disconnect and cause all sorts of idle and a/f problems. If you used a harsh chemical maybe it damaged it?
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