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View Full Version : RS running like ass.... couldn't be...


dougs90gsx
10-06-2003, 03:24 PM
OK this is pissing me off. I went through everything and I can't figure out why the car is doing this. Just wondering what it sounded like to everyone...

When I hit the gas the car studders really really badly like it wants to stall... the RPM's are also kinda crazy, or I should say idle... sometimes the car will just sit there and idle at like 3k and even if it is in gear it still does that... any ideas?
TDQuiksilver
10-06-2003, 03:27 PM
I'm assuming you went through plugs/wires? check all connections?
dougs90gsx
10-06-2003, 03:31 PM
Yea I went throught that.... not the wires though... do you think that could be it?

I changed the plugs last week like tues... I went and pulled them today and they are black as hell from carbon...
DlandryTSI
10-06-2003, 03:33 PM
Check your mas and make sure its plugged in.

--Dave
dougs90gsx
10-06-2003, 03:35 PM
on an RS? Where is the plug?
DlandryTSI
10-06-2003, 03:36 PM
What year is the car?

--Dave
dougs90gsx
10-06-2003, 03:37 PM
its a 99
DlandryTSI
10-06-2003, 03:39 PM
On the intake manifold there should be a map sensor. Check and see if that is plugged in. If not it may be bad.

--Dave
dougs90gsx
10-06-2003, 03:50 PM
Nope looks like everything is plugged in... it hasn't thrown a cel either
v413nc3
10-06-2003, 04:05 PM
It's definately dumping too much fuel, start there
dougs90gsx
10-06-2003, 04:07 PM
That is what I was thinking but where should I start?
XakEp
10-06-2003, 06:44 PM
THe MAS may be plugged in and if its bad it will still do what youre describing. Test it.
DlandryTSI
10-06-2003, 06:46 PM
Its an NT there is no mas.

--Dave
v413nc3
10-06-2003, 07:20 PM
Yeah, they're speed density... it runs on an IAT and a MAP sensor (Turbo's don't have MAP sensors they're MDP sensors, and the IAT is built into the MAS). I would start by checking the IAT and the MAP out first.
JamesonGST
10-08-2003, 10:10 AM
not sure if you figured out your problem, but you might want to check the connection with you TPS Throttle Position Sensor, if the connection is good make sure you don't have a bad sensor.