Another Problem

[maraudernkc]

This is my current probem. I have an 2004 MM with the below adds.

9100 SCT Dennis
Plugs
180 stat
4:10 Gears
Pauls HP cold air intake

Ran perfect than I pulled a trailer with 2 dirt bikes on the HWY running 70MPH and the MM is Rich as hell. You can smell it when you slow down and when you stop you can hear the exhaust make a ping sound now and than after the car is off. The trailer and bikes weight is 1300 lbs and the MM had no problem pulling it. You didn't even know the trailer was back there.

My thought is that it is the Cold air Intake.

Does anyone have any thought as to what the problem is.

I stopped at a dealer and the guy told my that that car could not pull that 1300 pound trailer and 2 bikes.

I thought to myself a MM with a healthy V8 and a full frame under it with RWD.

Give me a break!

[Bluerauder]

You can smell it when you slow down and when you stop you can hear the exhaust make a ping sound now and than after the car is off.
The only time I smell fumes is running behind someone needing a tune or when sitting in heavy traffic. I believe that this has been addressed here several times as relating to the air intake sucking in fumes from other vehicles.

However, I have noticed the pinging sound from the exhaust after shut off. I figured it was just from cooling and contraction. :dunno:

[MarauderMark]

The only time I smell fumes is running behind someone needing a tune or when sitting in heavy traffic. I believe that this has been addressed here several times as relating to the air intake sucking in fumes from other vehicles.

However, I have noticed the pinging sound from the exhaust after shut off. I figured it was just from cooling and contraction. :dunno:


I was a little leary with the pinging sound as well till i found out it was ok .as for the rich smell i think it is normal when using the tuner as it will burn rich for performance .But if your worried call dennis anytime he backs up everything he sells and is allways eager to help out a customer.. :beer:

[bugsys03]

I was a little leary with the pinging sound as well till i found out it was ok .as for the rich smell i think it is normal when using the tuner as it will burn rich for performance .But if your worried call dennis anytime he backs up everything he sells and is allways eager to help out a customer.. :beer:


Lean=Peformance
Rich=PIG

[sailsmen]

Too Lean = Blown Engine.
Too Rich = Fouled Plugs & Carbon Valve Build Up

[FiveO]

What octane gas were you running?

And better yet...what brand?

[rayjay]

Interesting discussion. It looks like I'm running to rich on a Lidio chip. Plugs were pretty carboned up, gas milage stinks compared to stock.

[SergntMac]

This is more a question than a solution...

Did you get your tune before, or, after you added Paul's induction kit?

Seems to me you may have thrown off the tune by changing things around, and you could have fouled your MAF ever so slightly. Try pulling the MAF and cleaning it?

How does it run after the trailer came off? If it was a temporary condition due to towing, it should correct itself in a short while. Or, pull your positive battery cable for about 10 minutes and clear the EEC? You'll have to drive around a while to rebuild your EEC history, but the rich condition, if temporary, should be gone.

Keep us posted?

[BillyGman]

This is more a question than a solution...

Did you get your tune before, or, after you added Paul's induction kit?


MAC has hit the nail on the head as far as I'm concerned......it seems like soooo many people on here are altering the intake system, and a number of them are doing so w/out getting the car dyno tuned, which I think is a very bad practice. If the intake modification really is doing anything that it's claimed to do, then you're getting more air into the engine. And more air means that your air/fuel ratio has been thrown off, and is now all wrong. I would think that it would cause a lean condition, but w/all of this complex computer garbage on these cars that we have, you never know what's going on w/it. Who knows?The EEC might have a way of overcompensating for a lean condition in some cases by causing the AFR to run too rich. You just can't go throwing parts on your engine that can alter the AFR, and then simply hope for the best, and hope that the AFR will still be correct.

[rayjay]

MAC has hit the nail on the head as far as I'm concerned......it seems like soooo many people on here are altering the intake system, and a number of them are doing so w/out getting the car dyno tuned, which I think is a very bad practice. If the intake modification really is doing anything that it's claimed to do, then you're getting more air into the engine. And more air means that your air/fuel ratio has been thrown off, and is now all wrong. I would think that it would cause a lean condition, but w/all of this complex computer garbage on these cars that we have, you never know what's going on w/it. Who knows?The EEC might have a way of overcompensating for a lean condition in some cases by causing the AFR to run too rich. You just can't go throwing parts on your engine that can alter the AFR, and then simply hope for the best, and hope that the AFR will still be correct.
BillyGman, I think you are correct. I too have the PHP airbox. I was concerned about running to lean, but it seems just the opposite is occurring. I'll be pulling the chip and PHP airbox shortly for the winter. Guess maybe a trip to see Lidio in Detriot next spring maybe in order before I put them back on.

[BillyGman]

BillyGman, I think you are correct. I too have the PHP airbox. I was concerned about running to lean, but it seems just the opposite is occurring. I'll be pulling the chip and PHP airbox shortly for the winter. Guess maybe a trip to see Lidio in Detriot next spring maybe in order before I put them back on.I think that's a wise decision on your part RJ. BTW, I would think that PHP would clearly recommend in the enclosed installation instructions, that the customer has the air/fuel ratio checked on the dyno AFTER their intake is in place. Isn't that the case?

[rayjay]

I think that's a wise decision on your part RJ. BTW, I would think that PHP would clearly recommend in the enclosed installation instructions, that the customer has the air/fuel ratio checked on the dyno AFTER their intake is in place. Isn't that the case?
I'll have to look, but I don't believe it was mentioned. I contacted Lidio about possibly running too lean, but he felt it wouldn't be an issue. I'll put the stock airbox back on tomorrow and see what happens. Speed parts aren't of much use anyway once the snow starts to fly here. I'll have to do some pretty fancy talkin next spring to avoid the frying pan hurl when she hears why I need to go to Detriot... :run:

[BillyGman]

I'll have to look, but I don't believe it was mentioned. I contacted Lidio about possibly running too lean, but he felt it wouldn't be an issue. I'll put the stock airbox back on tomorrow and see what happens. Speed parts aren't of much use anyway once the snow starts to fly here. That's what I like about a Supercharger...no bottles to fill, and no need to take it off, and install it again later on inthe year....it's always sitting there waiting to be used by a mere stab of the gas pedal whenever, and whereever you decide. I'll have to do some pretty fancy talkin next spring to avoid the frying pan hurl when she hears why I need to go to Detriot... :run:LOL!! well, fortunately I don't have that problem.......BTW, is she just as strict about going shopping for dresses and shoes at the mall for hours, and running up the plastic money bills? ....never mind....I guess I shouldn't be meddling.......

[Dennis Reinhart]

If Possibe I would have the AF checked with a wide band on a dyno, if this is not possible I would get a scanner on it and check both LTFT and STFT, if you can get this information I can help.

http://www.marauder57.com/Reinhart%20SC%20Banner%201.gif

[BillyGman]

[QUOTE=Dennis Reinhart]If Possibe I would have the AF checked with a wide band on a dyno, if this is not possible I would get a scanner on it and check both LTFT and STFT, if you can get this information I can help.

[QUOTE]

Can you please explain what you mean by "LTFT" and "STFT"???

[Dennis Reinhart]

[QUOTE=Dennis Reinhart]If Possibe I would have the AF checked with a wide band on a dyno, if this is not possible I would get a scanner on it and check both LTFT and STFT, if you can get this information I can help.

[QUOTE]

Can you please explain what you mean by "LTFT" and "STFT"???

Long term fuel trim and Short term fuel trim

This can help determine if the car is running rich, but the dyno can check the fuel at WOT = Wide open throttle

[MainEngDwarf]

I must be lucky, I installed the PHP air box after installing the tuning, and havn't had any problems at all. I don't do any towing however.

[maraudernkc]

I wa srunning 91 Octane Shell brand.




What octane gas were you running?

And better yet...what brand?

[maraudernkc]

I got the tune first. It ran fine until I put the trailer om it than it got real rich. I will see how it runs without thr trailer.




This is more a question than a solution...

Did you get your tune before, or, after you added Paul's induction kit?

Seems to me you may have thrown off the tune by changing things around, and you could have fouled your MAF ever so slightly. Try pulling the MAF and cleaning it?

How does it run after the trailer came off? If it was a temporary condition due to towing, it should correct itself in a short while. Or, pull your positive battery cable for about 10 minutes and clear the EEC? You'll have to drive around a while to rebuild your EEC history, but the rich condition, if temporary, should be gone.

Keep us posted?

[maraudernkc]

I think I am going to pull off the cold air intake and go back to the stock box.

thanks, greg



MAC has hit the nail on the head as far as I'm concerned......it seems like soooo many people on here are altering the intake system, and a number of them are doing so w/out getting the car dyno tuned, which I think is a very bad practice. If the intake modification really is doing anything that it's claimed to do, then you're getting more air into the engine. And more air means that your air/fuel ratio has been thrown off, and is now all wrong. I would think that it would cause a lean condition, but w/all of this complex computer garbage on these cars that we have, you never know what's going on w/it. Who knows?The EEC might have a way of overcompensating for a lean condition in some cases by causing the AFR to run too rich. You just can't go throwing parts on your engine that can alter the AFR, and then simply hope for the best, and hope that the AFR will still be correct.

[maraudernkc]

Dennis, It ran fine until I put the trailer behind the MM than she ran rich.




If Possibe I would have the AF checked with a wide band on a dyno, if this is not possible I would get a scanner on it and check both LTFT and STFT, if you can get this information I can help.

http://www.marauder57.com/Reinhart%20SC%20Banner%201.gif

[teamrope]

However, I have noticed the pinging sound from the exhaust after shut off. I figured it was just from cooling and contraction. :dunno:
I would have to agree. Mine and the Mrs MMs pipes "ping" as the cool down. that is normal.

[Bradley G]

That Cool down Ping sound is your MM thanking(purring)you for lett'in 'er stretch her legs!!;)