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03Merc
10-19-2016, 06:51 AM
Ever since I got the headers installed and adjusted the tune, My car has a rough time starting once it's warmed up a little bit. When I get in the car first thing in the AM it'll fire right up normally. If I drive to a nearby store or gas station and shut the car off, getting it to turn back over takes almost triple the amount of time, sometime I hit the gas peddle to get it to start or else it just won't start up. I already changed the fuel pump n filter. I also did this FPDM test I found online. The car seemed to start up normally when doing this test. I also swapped out the MAF and FPDM with ones from another Marauder same year. Still have the start up issue. Pls lmk if You have anything to suggest Me trying to do. http://uploads.tapatalk-cdn.com/20161019/b311feaf7b5e09aab07ae0d360bd0b 7f.jpg


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Zack
10-19-2016, 06:54 AM
What was adjusted in the tune?
03Merc
10-19-2016, 07:02 AM
What was adjusted in the tune?



Got it from Marty, He swears it's not in the tune. He even redid My whole file.


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Zack
10-19-2016, 07:24 AM
Did you clean the IAC and verify there are no vacuum leaks of any kind?
martyo
10-19-2016, 07:37 AM
Did you clean the IAC and verify there are no vacuum leaks of any kind?

Same questions I asked.
martyo
10-19-2016, 07:38 AM
Drive the car up and let us look at it.
fastblackmerc
10-19-2016, 09:06 AM
Battery cables clean and tight?
03Merc
10-19-2016, 11:43 AM
Did you clean the IAC and verify there are no vacuum leaks of any kind?



Yes.


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03Merc
10-19-2016, 11:43 AM
Drive the car up and let us look at it.



Might have to at this point.


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03Merc
10-19-2016, 11:44 AM
Battery cables clean and tight?



Yes.


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silversnake
10-20-2016, 08:45 AM
Is there such thing as going too big on the exhaust system? If they issue started after installing headers then that's where you should be looking. It'll help by posting your full exhaust mod.


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silversnake
10-20-2016, 08:48 AM
https://vimeo.com/188162884

Your car is probably the loudest MM I've heard by far.


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justbob
10-20-2016, 08:52 AM
You didn't accidentally swap the o2's or the harness from front to rear?




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justbob
10-20-2016, 08:59 AM
https://vimeo.com/188162884

Your car is probably the loudest MM I've heard by far.


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[emoji4]
http://youtu.be/8ePs5H4210s


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03Merc
10-20-2016, 09:01 AM
You didn't accidentally swap the o2's or the harness from front to rear?




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Maybe "they" did. I'm gonna try to take it back to the shop tomorrow AM.


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silversnake
10-20-2016, 09:01 AM
[emoji4]
http://youtu.be/8ePs5H4210s


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Boosted?


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03Merc
10-20-2016, 09:12 AM
https://vimeo.com/188162884

Your car is probably the loudest MM I've heard by far.


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Thank You. Let's go to the track tomorrow.


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silversnake
10-20-2016, 09:14 AM
Thank You.


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Np. Could you imagine if you were boosted?


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03Merc
10-20-2016, 09:18 AM
Np. Could you imagine if you were boosted?


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With the factory engine with over 100k I would be very worried. We should race to see how much the difference is!


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justbob
10-20-2016, 09:24 AM
Boosted?


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Is there any other way? [emoji1303]


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silversnake
10-20-2016, 09:30 AM
Is there any other way? [emoji1303]


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I agree [emoji51]. He has the loudest N/A MM I've seen so far


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03Merc
11-02-2016, 01:12 PM
Replaced primary 02s, still have the same problem.


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EMAS
11-02-2016, 11:05 PM
Replaced primary 02s, still have the same problem.


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O2 sensors have nothing to do with start up. The computer only looks at those once it has stabilized the idle.

The only things that the computer looks at when starting is the MAF, Cylinder Head and Intake Air temps, Fuel Pressure, crank and cam sensors.
03Merc
12-27-2016, 06:42 PM
Replaced IAC, still having same problem.

What should I replace next?


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