[Howie P.]

SES light is on. has been on. P0300 P0137 P0140 P0141. The codes the scanner has brought up. Still working on finding the reason for P0300 but unsuccessful as of yet. Anyway, sometimes while driving at 30mph-40mph the SES light flashes. then stops at 41mph and starts again at 50mph and stops at 55mph. A while back i did get a P1416 code but it has since gone away and i didnt erase the scanner. Any ideas would be rad. TYIA

 

[Rhotpursuit]

Year...engine...

 

[manbearpig]

I don't know of any first gens that use those codes...

 

[Howie P.]

Year...engine...

2001 4.3l

 

[GEOD998]

how many miles on it? Last tune up?

 

[GEOD998]

id check the O2 sensors with a multimeter first...then make sure a mouse or something hasnt been going to town on the plug wires as well as the o2 sensor wires. Check stuff with even a cheap meter before you buy...unless you want to spend money needlessly.There are many good youtubes out there for every sensor on any car . It also will give you a better understanding as to what is going wrong

 

[Howie P.]

how many miles on it? Last tune up?

168500mi. and tune up done at 167700. Okay i will try that. Thank you for some insight!

 

[Rhotpursuit]

168500mi. and tune up done at 167700. Okay i will try that. Thank you for some insight!

I'd use oem parts...