joenintiesc
Registered User
Ok, I just finished a bunch of stuff to my 90SC: motor mounts, ported exhaust maifolds, hi flow cats, new O2 sensors, 190 fuel pump, 42# injectors, 75mm tb, 76mm C&L maf, new tuner file from Dr. Fred. Also have a MPII blower, plenum, and top.
From what I already know and searching the forum I believe my current problem is related to the cam sensor. I am having a hard start problem with no tach (sometimes). But once it's running, it idles and drives fine. Wouldn't a bad cam sensor also cause driveability problems, like bucking? Also, sometimes the tach is working and it starts right up. Would this be a wiring/connection problem that could possibly be corrected without replacing the sensor? Sometimes if I jiggle the wires/sensors I can get the tach up again...
On the other hand, I had to drive 60 or so miles without the 76maf, and it was running very rich. Could it be a fouled spark plug causing hard starts - probably not becuase of the sometimes dead tach, right?
Also, I've gotten some KOER codes and they are as follows:
42 No exhaust gas oxygen switching detected- always indicating rich
92 Exhaust gas oxygen shows rich bank 2 or fuel control circuit failure
53 TPS voltage is too high
Also, got this memory code:
19 Cylinder identification failure
Is it possible I have a bad o2 sensor? Any help would be great!
Thanks guys, you rule!
From what I already know and searching the forum I believe my current problem is related to the cam sensor. I am having a hard start problem with no tach (sometimes). But once it's running, it idles and drives fine. Wouldn't a bad cam sensor also cause driveability problems, like bucking? Also, sometimes the tach is working and it starts right up. Would this be a wiring/connection problem that could possibly be corrected without replacing the sensor? Sometimes if I jiggle the wires/sensors I can get the tach up again...
On the other hand, I had to drive 60 or so miles without the 76maf, and it was running very rich. Could it be a fouled spark plug causing hard starts - probably not becuase of the sometimes dead tach, right?
Also, I've gotten some KOER codes and they are as follows:
42 No exhaust gas oxygen switching detected- always indicating rich
92 Exhaust gas oxygen shows rich bank 2 or fuel control circuit failure
53 TPS voltage is too high
Also, got this memory code:
19 Cylinder identification failure
Is it possible I have a bad o2 sensor? Any help would be great!
Thanks guys, you rule!