NEED HELP! Codes!
09-25-2009, 08:03 PM
#1
On The Tree
Thread Starter
iTrader: (8)
Join Date: Jan 2005
Location: St. Louis MO
Posts: 117
Likes: 0
Received 0 Likes
on
0 Posts
NEED HELP! Codes! My car keeps throwing these 2 codes! I dont know why or what else I can do. The car has a new IAC and a new TPS and a new MAP sensors! Both codes are thrown at the same time. The codes are P0121 and P0507. Any help would be greatly appreciated!
09-26-2009, 06:01 AM
#2
Codes P0507 is "Idle Control System RPM Higher Than Expected"
P0121 is "A code P0121 may mean that one or more of the following has happened:
* TPS has intermittent open or short internally
* Harness is rubbing and causing an open or short in the wiring
* Bad connection at the TPS
* Bad PCM (less likely)
* Water or corrosion in connector or sensor"
All your grounds connected good ? Does it idle fast ? Did you notice anything when these codes started popping up ?
Do you have a way to test the sensors with some kind of scanner to verify their functionality?
Verify that your TPS is reading 0 volts when the TB is closed ....
P0121 is "A code P0121 may mean that one or more of the following has happened:
* TPS has intermittent open or short internally
* Harness is rubbing and causing an open or short in the wiring
* Bad connection at the TPS
* Bad PCM (less likely)
* Water or corrosion in connector or sensor"
All your grounds connected good ? Does it idle fast ? Did you notice anything when these codes started popping up ?
Do you have a way to test the sensors with some kind of scanner to verify their functionality?
Verify that your TPS is reading 0 volts when the TB is closed ....
Last edited by davidws6; 09-26-2009 at 06:02 AM. Reason: .
09-26-2009, 06:37 AM
#3
On The Tree
Thread Starter
iTrader: (8)
Join Date: Jan 2005
Location: St. Louis MO
Posts: 117
Likes: 0
Received 0 Likes
on
0 Posts
I'm thinking it's a wiring issue or a bad PCM. It started to do this after I got a mail order tune. Had it it dyno tuned since the mail order and it still throws the code randomly. I will check the wiring again.
09-27-2009, 03:17 AM
#5
On The Tree
Thread Starter
iTrader: (8)
Join Date: Jan 2005
Location: St. Louis MO
Posts: 117
Likes: 0
Received 0 Likes
on
0 Posts
So tonight I took the car out. Drove it over 100 miles and no light. Pulling into the garage it throws a check engine light. This time it's the P0507 light only. I'm getting so tired of this! Any more ideas?
