I was driving my Ty all week and she's been acting up. I just got finished with a tune up because the check engine light kept coming on. So I changed spark plugs and wires, cap, rotor, and distributor. I didn't get around to the o2 sensor though. Anyways it was not starting up regularly, taking a long time to crank over and a little gas to keep her on. Then I went to the gas station and on the way back she was under a lot of load. Seemed like the turbo was anticipating all the work and I had to push the gas quite a bit. It was jumping from idle to 2000-2800 really quick and boost was working hard. Come to find out when I got home the header were RED HOTT!!!! I shut her down for the night, don't know where to start. I need some advice because she's been unhappy for a week now. Also, she's been throwing 42 and 44 engine codes. Please help...:roll:
Hot Headers...
- Thread starter ilandaze2
- Start date
BoostedSUV
Active member
Re: Hot Headers...
check the brown wire under the pass side dash. There's a brown wire that has plug that is used for setting timing. When that is disconnected you will get a code 42. Make sure that connection is tight and connected in the first place. If that connection is loose or disconnected the timing will be at 0 degrees and you would lack a lot of power. That could cause all sorts of issues if it's unplugged. Code 44 is 'O2 sensor lean' as Nick stated. Check that brown wire, thats my bet!
check the brown wire under the pass side dash. There's a brown wire that has plug that is used for setting timing. When that is disconnected you will get a code 42. Make sure that connection is tight and connected in the first place. If that connection is loose or disconnected the timing will be at 0 degrees and you would lack a lot of power. That could cause all sorts of issues if it's unplugged. Code 44 is 'O2 sensor lean' as Nick stated. Check that brown wire, thats my bet!
Re: Hot Headers...
I just replaced the o2 sensor today. Took it for a spin down the road, ran fine, on the way back, it gained a lot of load again and took about 60% of the power away. I don't get it. I checked the brown wire and it is connected. When hooked to the datamaster same codes are on. What else can I check?:rant:
I just replaced the o2 sensor today. Took it for a spin down the road, ran fine, on the way back, it gained a lot of load again and took about 60% of the power away. I don't get it. I checked the brown wire and it is connected. When hooked to the datamaster same codes are on. What else can I check?:rant:
BoostedSUV
Active member
Re: Hot Headers...
watch the timing on the datamaster, I'm willing to bet that thw connection is loose somewhere on the brown wire. I had mine diconnected the other day to set the timing and code 42 kicked up. Truck has no power when it's not making a connection because it takes the timing out of the motor.
watch the timing on the datamaster, I'm willing to bet that thw connection is loose somewhere on the brown wire. I had mine diconnected the other day to set the timing and code 42 kicked up. Truck has no power when it's not making a connection because it takes the timing out of the motor.
gkrcr882
SyTyless......for now!
Re: Hot Headers...
Do you still have a catalytic converter? If the exhaust is hot enough to cause the headers to glow, there is a chance that the converter may have began to melt. Take a look inside to be safe. Is the fuel pressure and volume good? Does the system stay pressurized after the key is turned off? Lack of advance will cause low power, but it sounds like you have an extremely lean condition.
Edit: After reading and thinking, this **may** be a backpressure/clogged exhaust problem. Datalog to find out for sure.
Do you still have a catalytic converter? If the exhaust is hot enough to cause the headers to glow, there is a chance that the converter may have began to melt. Take a look inside to be safe. Is the fuel pressure and volume good? Does the system stay pressurized after the key is turned off? Lack of advance will cause low power, but it sounds like you have an extremely lean condition.
Edit: After reading and thinking, this **may** be a backpressure/clogged exhaust problem. Datalog to find out for sure.
jasonpickett
New member
Re: Hot Headers...
I would also check the converter inside to see if it was clogged/melted. This would cause it to get very hot and have a bad o2 sensor reading. Also does it only do it when the engine heats up.
I would also check the converter inside to see if it was clogged/melted. This would cause it to get very hot and have a bad o2 sensor reading. Also does it only do it when the engine heats up.
SY-1193
Active member
Re: Hot Headers...
Do not drive your truck until you check the timing! Sounds LEAN from too much timing from what I read in your posts above.
Your distributor cap may have moved when you did your ignition tune up. Check the timing with the timing wire disconnected get that to "0" timing then reconnect that wire - read the quote from BoostedSUVabove in this window. Check that the bolt on the distributor hold down is tight and the dist. doesn't move. You sound like you have a LEAN condition and that is dangerous and could lead to join the jackstand club. Too much Timing my guess.
Do not drive your truck until you check the timing! Sounds LEAN from too much timing from what I read in your posts above.
Your distributor cap may have moved when you did your ignition tune up. Check the timing with the timing wire disconnected get that to "0" timing then reconnect that wire - read the quote from BoostedSUVabove in this window. Check that the bolt on the distributor hold down is tight and the dist. doesn't move. You sound like you have a LEAN condition and that is dangerous and could lead to join the jackstand club. Too much Timing my guess.
sharkbait
New member
Re: Hot Headers...
if it was pulling timing i don't think the headers would get red hot. the motor would feel like it doesn't have power from running pig rich.
im guessing your running alot of timing. maybe you did move the dist cap by mistake.
my gut feeling is a clogged cat. if you would have checked the cats temp, i bet it was just as hot as the headers.
keep us posted.
if it was pulling timing i don't think the headers would get red hot. the motor would feel like it doesn't have power from running pig rich.
im guessing your running alot of timing. maybe you did move the dist cap by mistake.
my gut feeling is a clogged cat. if you would have checked the cats temp, i bet it was just as hot as the headers.
keep us posted.