HELP PLEASE...This Doesn't Mkae Sense!

wasvette · 06-20-2007, 10:25 AM

For the tech gurus out there...Any feedback would be greatly appreciated!!!! I'm stumped.

1) Friday Night - Installed Steeda cold air kit with plastic inlet tube. Re-tuned with SCT with 93 octane setting and Steeda kit programming. Test Drove...awesome.

2) Saturday - Drove 4 hours and seemed fine.

3) Sunday - Stayed parked all day.

4) Monday - Drove home 3 hours - halfway put in a can of Seafoam Motor Treatment -FROM THAT POINT ON IN HESITATES BIG TIME IN LOWER RPM RANGE. But...doesn't do it every time.

Note: Car has 81,000 miles - synthetic since 2k. Only other mods - underdrive pulleys and Steeda throttle body spacer.

Thoughts?

Thanks, Kevin

angcobra · 06-20-2007, 10:40 AM

Sea foam and hesitation are most likely not related.

I would start with checking/cleaning Mass Air Meter and associated connections with change of CAI

Margarita Girl · 06-20-2007, 10:50 AM

Before I installed my Steeda, I used some sandpaper on the shiny black elbow so that the rubber connectors would stick better. This included the vacuum hose fitting. Check to be sure that it did not come loose from driving.

wasvette · 06-20-2007, 10:50 AM

Thanks angcobra...are spark plugs a possibility that suddenly and coincidentally with the high miles (81,000)?
Kevin

wasvette · 06-20-2007, 10:55 AM

So...is what I'm describing a classic symptom of air getting into a connection somewhere between the throttle body and air filter?

angcobra · 06-20-2007, 11:06 AM

Quote:

ORIGINAL: wasvette

Thanks angcobra...are spark plugs a possibility that suddenly and coincidentally with the high miles (81,000)?
Kevin

plugs would effect all rpm ranges

angcobra · 06-20-2007, 11:07 AM

Quote:

ORIGINAL: wasvette

So...is what I'm describing a classic symptom of air getting into a connection somewhere between the throttle body and air filter?

With change of the CAI, it is a strong possibility.
Anytime you make a mod or work on something and then a problem shows up, always go back and look at the last thing worked on first.

wasvette · 06-20-2007, 11:22 AM

Makes sense angcobra...I just can't figure out what changed between Saturday and Monday even after a detailed inspection of the CAI...just a bummer after spending almost $700 and pulling off a no tune CAI that was working fine...

"Half Power" Kevin

angcobra · 06-20-2007, 11:27 AM

Is your new filter, an oil type filter? If so, it maybe that some of the excess oil is now on the Mass air meter, confusing things.

wasvette · 06-20-2007, 11:44 AM

It's a steeda filter...I think it uses oil...how do you clean a mass air without ruining it?