I've been having CEL & TCS coming on @ the same time. I did some research and they've been saying it can be a lot of stuff.

CEL that I got: p0300 random misfire, p030 1Cyl #1, P0302 Cyl #2, P0304Cyl# 4, P0305 Cyl #5

"EGR clogged, Spk Plug (which already replaced), Clogged injectors, Maybe ECU.

Any idea what it can be or what to start off first? Man all expense stuff right here.

 

you have misfire codes. You probably have a coil pack starting to fail. Buy one new coilpack and stick it on cyl 1, reset the ECU and start the car. Does the CEL come back on? Yes, move to Cyl 2 and repeat with new coil pack till code stays away.

 

welcome the the forum
Please use the standard font and size--easier for some of us old guys to see! thanks

`reset the ecu` means open passenger front door- remove cover on end of dash - see CLOCK fuse- remove that for a minute and reinsert-
it forces a master reset and self test of the systems--will tell if that coil was the bad one
If car still runs poorly, move new coil to next suspected cylinder and do the reset- start car runs good or not,,yadayada
eventually you will find it that way

cyl numbers rear pass to driver 123 front pass to driver 456

for `clogged egr` please see our diy section,,3rd item down the main gen2 list after you sign in,,Thermoblock install and EGR cleaning is the thread title
remove the intake manifold and use carb cleaner and wire coat hanger (no kidding)
to remove carbon blocking the passage and port
99s are especially prove to this because only 1 egr port into the head,,later years have 6
there was even a recall for 99s to clean it and install a smooth sleeve, to reduce the clogginng-- but its a problem on all years for gen2,,should be done every 75kmiles,,
2 hour diy at a casual pace

 

you can pick up a coil at any parts store for about 50 bucks