Help
11-03-2005, 07:39 AM
#1
Junior Member
Thread Starter
Join Date: Nov 2005
Posts: 5
I'm trying to buy an 1991 RX-7 Convertible, great shape and everything, just one small problem. After the gas pedal is halfway down, the engine starts to kind of die... It lunges back and forth. I'm told that it's probably because it's running lean, I'm not too familiar with cars, and the guy who told me that isn't familiar with rotary's.
I was wondering if anyone here had this kind of problem? It's been garage kept for a long time, has 126,000 miles. Unfortunately, taking it to the dealership is practically out of the question, as the price is pushing my limit already. If anyone has had this problem, are there any signs to look for that would tell me what the problem is? Thank you for any help.
I was wondering if anyone here had this kind of problem? It's been garage kept for a long time, has 126,000 miles. Unfortunately, taking it to the dealership is practically out of the question, as the price is pushing my limit already. If anyone has had this problem, are there any signs to look for that would tell me what the problem is? Thank you for any help.
11-03-2005, 12:00 PM
#2
Senior Member
Join Date: Apr 2004
Location: Garland, TX
Posts: 224
It sounds like a throttle position sensor problem to me... these are known to either go out of adjustment or just flat-out fail.
Here is a link on how to check/adjust yours. It is specifically written for the 86-88 RX-7 but should work for your 91 as well.
Here is a link on how to check/adjust yours. It is specifically written for the 86-88 RX-7 but should work for your 91 as well.
11-03-2005, 12:41 PM
#5
Junior Member
Thread Starter
Join Date: Nov 2005
Posts: 5
Thanks guys.
I believe it happens while driving and sitting, next time I'm over there, I'm going to take a better look at it and write everything that happens down. I'm also going to see if I can check the compression, I'll post back with what I find.
I believe it happens while driving and sitting, next time I'm over there, I'm going to take a better look at it and write everything that happens down. I'm also going to see if I can check the compression, I'll post back with what I find.
11-03-2005, 04:19 PM
#9
Senior Member
Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by TimG' post='775198' date='Nov 3 2005, 12:29 PM
Oh, another thing I forgot, I dont know if this is redundant info or if it changes the whole situation all-together, but the check engine light is constantly on.
i betcha the code is for the tps.
11-03-2005, 04:54 PM
#10
Senior Member
Join Date: Apr 2004
Location: Garland, TX
Posts: 224
Yup, prolly TPS.
Now, another posibility is the airflow meter, located at the bottom of the airbox. If it isn't the TPS, try unpluging this and clean the plug off, they can get dirty. However, I doubt this is it.
Now, another posibility is the airflow meter, located at the bottom of the airbox. If it isn't the TPS, try unpluging this and clean the plug off, they can get dirty. However, I doubt this is it.