Ever since my 89 got back on the road my 89 has had this recurring issue. When you first start the car (cold) it starts and idles good, once a minute or two have passed the car starts idling rough and some times it dies. IT sounds and feels as tho the car has a vacuum leak. Sometimes the idle will be rough, but enough to keep the car running. Now, the problem goes away once the car is fully warmed up. Once in operating range the car hauls as it should...a bit smokey, but thats besides the point since it has had a rich condition since I finished the rebuild. Once warmed up, the idle returns to normal and its a pleasure to drive. Now, if I turn the car off and re-start a few minutes later the it would do what i've mentioned for a bit, but then go back to normal.
If for example I turn the car on for the first time in the day and not let it warm up, and i start driving...the car would start idling rough after a bit, loose power and to keep it from stalling I have to rev it up either by putting it on neutral or by just stomping on the gas. When I do hit the gas, it takes a sec or two to 'catch wind' and go. I do get a CHECK ENGINE light, and the codes point to a rich condition in both banks.
I just thought it was perhaps a huge vac leak or something which I planned to check, but what has switched my suspicions towards the passingers side cat is the fact that its now making noise. Any thoughts? Does it sounds like something that a clogged catalytic converter would cause?
If for example I turn the car on for the first time in the day and not let it warm up, and i start driving...the car would start idling rough after a bit, loose power and to keep it from stalling I have to rev it up either by putting it on neutral or by just stomping on the gas. When I do hit the gas, it takes a sec or two to 'catch wind' and go. I do get a CHECK ENGINE light, and the codes point to a rich condition in both banks.
I just thought it was perhaps a huge vac leak or something which I planned to check, but what has switched my suspicions towards the passingers side cat is the fact that its now making noise. Any thoughts? Does it sounds like something that a clogged catalytic converter would cause?