just ordered headers

[ST-8]

6.1 bolts on Tylerb an I's header swap. Worked great on both applications.

 

[Reaper26]

well im kinda mad. they were suppose to be here today and they still in TX, so maybe tom. when it gets here ill look at the bolts and if I don't like it ill get sum grade 8 or 6.1s the dealer has them in stock. ill use 8s and locks with anti seize, and would running it for a while and getting the head warm or hot make it easier for the bolts to come out without problems?

 

[ATXHEMI]

Stay them with penetrating oil the night before and about 20 min before you start. Mine came out just fine. Only thing that broke were the heat Sheild bolts but that's not a problem. It's not to bad of a job. Put it on jack stands, remove the front wheels and wheel liners. Makes life much easier.

 

[Reaper26]

thats exactly what i was planning on ****, its a big front end and there is plenty of room to get to things. just hope it all goes smooth.

 

[Reaper26]

put my headers on last night, wasn't hard just took a long time. drove home last night it was all fine other than a couple leaks from those clamps, im guna weld it tonight, then on the way to work today the check engine light came on, p2098 post catalyst fuel trim system too lean. any ideas what I should do? the cats are not on it, I haven't ordered the hi flows yet.

 

[Redtruck-VA]

put my headers on last night, wasn't hard just took a long time. drove home last night it was all fine other than a couple leaks from those clamps, im guna weld it tonight, then on the way to work today the check engine light came on, p2098 post catalyst fuel trim system too lean. any ideas what I should do? the cats are not on it, I haven't ordered the hi flows yet.

I see this on the internet:
- Faulty Heated Oxygen Sensor
- Heated Oxygen Sensor harness is open or shorted
- Heated Oxygen Sensor circuit poor electrical connection
- Exhaust leaks
- Contaminated Heated Oxygen Sensor

I would check the plug connections and did you get any anti-seize on the O2 sensors?

 

[Reaper26]

i did put anti seize on the sensors, im not sure if it got on the pick up, i did get pb blaster on one of them, and the y pipe that came with it is leaking in several places. the clamps wont tighten it up. i bought sum sealer to put on it later so i dont have to try and weld all the joints together. ive bn watching my a/f ratio on my tuner and both are at 8.0 and dont change.

 

[Reaper26]

the exhaust valves are pretty white too.

 

[Redtruck-VA]

i did put anti seize on the sensors, im not sure if it got on the pick up, i did get pb blaster on one of them, and the y pipe that came with it is leaking in several places. the clamps wont tighten it up. i bought sum sealer to put on it later so i dont have to try and weld all the joints together. ive bn watching my a/f ratio on my tuner and both are at 8.0 and dont change.

Your AFR readings are clearly showing a problem, as it should be reading above 15 for a lean condition. Reading 8 AFR is super super rich... WOT readings are usually around 12.3 AFR max if not Forced Inducted and then it's something like 11.8. Sounds like your O2s are at fault or maybe their wiring.

 

[TylerB]

i did put anti seize on the sensors, im not sure if it got on the pick up, i did get pb blaster on one of them, and the y pipe that came with it is leaking in several places. the clamps wont tighten it up. i bought sum sealer to put on it later so i dont have to try and weld all the joints together. ive bn watching my a/f ratio on my tuner and both are at 8.0 and dont change.

Your computer is dumping fuel in attempt to cool the cats(that aren't really there) before they melt.

 

[Reaper26]

we were very careful when we un plugged the sensors. the wires or plugs should all be fine. ill double check it all when i get off and can get it pulled back in the shop.

 

[Reaper26]

so what can i do about it dumping extra fuel? when i left work last night i had half a tank its 22 miles home, the needle didnt move at all, and after coming back to work its just under half, the best its been in a long time. it usually takes close to 1/4 both ways. i dont see how its dumping extra fuel.

 

[Redtruck-VA]

I don't think the 8 AFR reading is correct, but it has to be playing havoc with the PCM trying to maintain 14.7 AFR. Could you have mixed the front and rear sensors? You first need to get the exhaust system tight for the readings to be accurate.

 

[Reaper26]

no we didnt take the front sensors off the truck, just unscrewed them and marked the rear ones. im workin on it now and cleared the code before i unhooked the batt and theres a new code p0038 heater circuit? come on guys give me some solutions, what can i use to clean the o2s with thats safe?

 

[Redtruck-VA]

From what I see that is a Voltage "high" code, that means the circuit is open or plug /wire broken.

 

[Reaper26]

ok got all the leaks fixed, resest my codes and drove home last night ran great no codes and this morning it cam back, but this time its p0420- catalyst system efficiency below threshold. thats just from the cats not being there right? if so my non foulers didnt work, or i didnt do it right.

 

[Redtruck-VA]

I would stuff the Non-Fouler with steel wool. I never had too do that, but it would certainly kill the sensor from reading.

 

[Blackram]

ok got all the leaks fixed, resest my codes and drove home last night ran great no codes and this morning it cam back, but this time its p0420- catalyst system efficiency below threshold. thats just from the cats not being there right? if so my non foulers didnt work, or i didnt do it right.

You shouldn't get that code with the non foulers unless something was done incorrectly.

 

[Reaper26]

i took the non foulers cut the threads off the first one, welded it in as my ****, then drilled a hole through the second so the sensor would screw down in it, then screwed them all together, they raised up about 2 inches.

 

[Blackram]

i took the non foulers cut the threads off the first one, welded it in as my ****, then drilled a hole through the second so the sensor would screw down in it, then screwed them all together, they raised up about 2 inches.

You need 0000 steel wool packed in the first non fouler before you screw the second one in with the sensor.

But if you cut the threads off it your going to need to get another non fouler.