Tune-up done, exhaust leak fixed, and cleared the codes, P0130, P0135, P0171.

Drove it for 15 miles ran great, more power, smoother idle. But after I got how and shut it off for about 15-20 mins and went back and started it up, to put it back in the garage, the P0130 came back. Cleared it put it in the garage, next day drove it with no problems, no codes. Stopped by the store, came out started it up, a few mins later the MiL light came on, P0130 again.

This has happened 3 more times, no codes if I let it sit for a while, but if I restart it within 10-20 mins it comes back.

Already replaced it twice.

 

P0130 O2 sensor circuit malfunction (bank 1, sensor 1) Front sensor LH bank stoichiometric ratio outside operating band (From RAVE)

But in Bosch engine management manual, it says O2 short circuit.

Might be a wiring problem. Two pages attached from Bosch guide. It shows that this is a code that must happen in two drive cycles to turn on the light, so you work on it, clear it, drives OK, then next time it stinks...

 

For poopie and giggles, check the connector really well.

 

Swap the sensors from side to side, does the code follow?

 

I will try that Spike. And check the connectors.

 

You do see now that it is a code that can pop back up if it happens in two drive cycles, so don't toast success until it has been good for a week.