Bestwestranger
15+ Year Contributor
- 139
- 0
- Sep 24, 2003
-
Cotter,
Arkansas
Ah, this is a strange tale indeed. Here is the info;
My car has always run a little hot, so a freind let me try out a different radiator to see if maybe mine was heading south. At the time, I had what felt like a lean condition under boost. There was some noise like spark knock, and a loss of power. It was logged, but everything showed fine(?). So anyway, I swap radiators, and the one I was borrowing had the fans and everything on it, so they went in as well. Afterwards, the car ran a bit cooler, and as a side effect, the car started running a bit rich. No more spark knock, no more pulled timing. It was bad enough that under w.o.t. there was black smoke out the tail pipe, and some bogging. So I check some stuff out, and find my O2 sensor had crapped out. I replaced it, and it helped a bit. I buy a new radiator, throw my gear on it, and take it for a drive. After it warms up, I get this real hard hesitation like I am hitting fuel cut something. It was real violent under full boost in first gear! It doesn't happen at any specific rpm, boost psi, or vehicle speed. And, for the first time in a year that I have had the car, I get a cel light that goes on and off. I plan to try and pull the codes Monday at work, but if anyone has any ideas that can point me in the right direction, let me know! Is it possible that a temp sensor on the radiator is screwin things up?
Thanks,
Chris
91 GS turbo with free mods, K&N, mbc set at 15, unhacked maf.
My car has always run a little hot, so a freind let me try out a different radiator to see if maybe mine was heading south. At the time, I had what felt like a lean condition under boost. There was some noise like spark knock, and a loss of power. It was logged, but everything showed fine(?). So anyway, I swap radiators, and the one I was borrowing had the fans and everything on it, so they went in as well. Afterwards, the car ran a bit cooler, and as a side effect, the car started running a bit rich. No more spark knock, no more pulled timing. It was bad enough that under w.o.t. there was black smoke out the tail pipe, and some bogging. So I check some stuff out, and find my O2 sensor had crapped out. I replaced it, and it helped a bit. I buy a new radiator, throw my gear on it, and take it for a drive. After it warms up, I get this real hard hesitation like I am hitting fuel cut something. It was real violent under full boost in first gear! It doesn't happen at any specific rpm, boost psi, or vehicle speed. And, for the first time in a year that I have had the car, I get a cel light that goes on and off. I plan to try and pull the codes Monday at work, but if anyone has any ideas that can point me in the right direction, let me know! Is it possible that a temp sensor on the radiator is screwin things up?
Thanks,
Chris
91 GS turbo with free mods, K&N, mbc set at 15, unhacked maf.
