Did some work over the winter now car running funny.
03-08-03, 06:16 PM
#1
STi Boxer power!
Thread Starter
Join Date: Apr 2001
Location: Austin, TX
Posts: 2,160
Likes: 0
Received 0 Likes
on
0 Posts
Did some work over the winter now car running funny.
Hey guys. Need some trouble shooting advice here. This winter I did a few projects to my car which I finally finished up today. However, when I started it up (first time since November), it was running extremely rough, almost like it was missing, and was blowing alot of black/grey smoke (smelled rich). The idle was way down too. However, when I parked it for the winter it ran fine so I know it's got something to do with something I did.
I installed a Greddy FMIC, Greddy Airinx Intake, Greddy Pulley Kit and a Greddy Intake Elbow. Obviously my airpump is now gone. I have plugged the one pipe I saw from the airpump that is no longer being used. I also plugged the AWS pipe that went into the original intake elbow.
First thing I did was check my map sensor. I never touched that part all winter long so it's no surprise that wasn't the problem. It was still plugged in.
Anyone got any ideas? Thanks much.
Bryan
I installed a Greddy FMIC, Greddy Airinx Intake, Greddy Pulley Kit and a Greddy Intake Elbow. Obviously my airpump is now gone. I have plugged the one pipe I saw from the airpump that is no longer being used. I also plugged the AWS pipe that went into the original intake elbow.
First thing I did was check my map sensor. I never touched that part all winter long so it's no surprise that wasn't the problem. It was still plugged in.
Anyone got any ideas? Thanks much.
Bryan
03-09-03, 09:09 AM
#3
Re: Did some work over the winter now car running funny.
Originally posted by bricke
Obviously my airpump is now gone. I have plugged the one pipe I saw from the airpump that is no longer being used. I also plugged the AWS pipe that went into the original intake elbow.
Obviously my airpump is now gone. I have plugged the one pipe I saw from the airpump that is no longer being used. I also plugged the AWS pipe that went into the original intake elbow.
If so, that's probably why it was running strange. I would assume the remapped ECU is probably expecting the air pump to be there (just like the stock ECU).
You might try resetting the ECU and then driving it around. See if it can learn. Check the following thread and see if it helps:
https://www.rx7club.com/forum/showth...threadid=49053
03-09-03, 11:21 AM
#6
STi Boxer power!
Thread Starter
Join Date: Apr 2001
Location: Austin, TX
Posts: 2,160
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by rxrotary2_7
change your plugs.
change your plugs.
Last edited by Scrapiron7; 03-09-03 at 11:27 AM.
03-09-03, 04:35 PM
#7
Lives on the Forum
change them. i would.
what would it hurt? nothing. if anything it wiil take 15 minutes out of your day, and you have new plugs and probobly no running like ****. this has happened to me a few times.
what would it hurt? nothing. if anything it wiil take 15 minutes out of your day, and you have new plugs and probobly no running like ****. this has happened to me a few times.
Trending Topics
03-09-03, 05:07 PM
#8
Contact RP and find out if thier ECU has pulled out all the fuel at idle for a deleted airpump. If not you will either have to have it remapped or change ECU's to a more tunable type. I use the Power FC and you can pull out fuel via the PIM on the commander. Remapped ECU's really lack when it comes to performance. Unless your ECU is tuned for your exact motor and mods its not going to be tuned up to standard. It will tend to be overly rich because of liablity if you blow a motor using thier ECU and even more so if it wasnt tuned to run without an airpump. Really rich = safe when it comes to rotaries but it also negatively effects drivability and performance. Because every car is different the remapped ECU's will produce mixed results. At this point looking at your results i would say your ECU isnt tuned for a deleted airpump. But check to make sure as it may be a different problem i.e injector is stuck open etc.
Last edited by ZoomZoom; 03-09-03 at 05:09 PM.
03-09-03, 06:36 PM
#10
STi Boxer power!
Thread Starter
Join Date: Apr 2001
Location: Austin, TX
Posts: 2,160
Likes: 0
Received 0 Likes
on
0 Posts
It wasn't the plugging of the AWS that caused it. I took the cap off it and it didn't help things at all. I also reset the ECU by disconnecting the negative on the battery and holding the brake for 10 seconds. This also didn't help. Narrowed done to ECU pretty much with plugs being a possibility.
03-15-03, 05:13 PM
#11
STi Boxer power!
Thread Starter
Join Date: Apr 2001
Location: Austin, TX
Posts: 2,160
Likes: 0
Received 0 Likes
on
0 Posts
I went ahead and replaced the plugs with NGK 9s all the way around and after letting it run for about 10 minutes the smoke stopped and the idle calmed down some. It's back to running normal except at idle the vacuum is down a bit and it jumps some, but I attribute that to the air pump being out since it's the same thing it did when I unplugged it last year. Thanks for the tip rxrotary2_7.
Bryan
Bryan
03-15-03, 06:33 PM
#12
Lives on the Forum
no problem. 
glad thigs are good now. dont toss thoes old plugs just yet. clean them up REAL good and see if you can still use them. i dont know the condition of them, but if the car ran fine before, you can still prob get some life out of them. 
glad thigs are good now. dont toss thoes old plugs just yet. clean them up REAL good and see if you can still use them. i dont know the condition of them, but if the car ran fine before, you can still prob get some life out of them.
Thread
Thread Starter
Forum
Replies
Last Post
KAL797
Test Area 51
0
08-11-15 03:47 PM