PDA

View Full Version : Runs ruff cold


Finally
06-27-2015, 08:28 AM
Recently my 03 on start up runs like it needs a choke,it sputters and I have to step heavy to get it to rpm before it smooths out.
Once it's warm it fine,it always has had a rich smell with the MartyO tune on cold but this running rough is new.
Could the rich startup foul anything up ? My last trip into town the engine light came on with a P1152 code which apparently is a slow 02 sensor and now I fear changing them and fouling them up again.
My engine mods are,JLT CAI ,Stainless Works long tubes with cat deletes,all accounted for in the tune.

Thanks all

Tony
martyo
06-27-2015, 10:00 AM
Tony, I looked and the tune file is not rich at idle or start up. So, I can safely say the tune is not what is causing the 02 to foul.

I can revise your file to give it a small rev at start up like these cars had from the factory if you want to try that. Let me know.

Out of curiosity, do you have a wideband on the car?
Finally
06-27-2015, 10:15 AM
Tony, I looked and the tune file is not rich at idle or start up. So, I can safely say the tune is not what is causing the 02 to foul.

I can revise your file to give it a small rev at start up like these cars had from the factory if you want to try that. Let me know.

Out of curiosity, do you have a wideband on the car?

Hi Marty.
In my reading I found where someone said they run a little rich with a tune so that has never bothered me,I have left it to idle for 10 min on a summer day and it will still do it so I'm not sure if that adjustment will fix it,it did not run like this before the headers and cat delete so this is why I thought maybe that's why the 02's are maybe working harder with more flow going past them or something like that.
Sorry Marty I don't have a gauge but I should put one on..
justbob
06-27-2015, 10:23 AM
For two years mine never stayed running on a cold start. I had to two step it for about a minute every time. It started right after a tune I received from another source who kept blaming my IAC, even my brand new Motorcraft one...

Marty and Jeff set mine to rev on start up again and all is peachy. And yes, all cars carbed or injected run a tad rich on start up, otherwise they would die. (IAC or choke)


Builder Of Badassery
Finally
06-27-2015, 10:29 AM
For two years mine never stayed running on a cold start. I had to two step it for about a minute every time. It started right after a tune I received from another source who kept blaming my IAC, even my brand new Motorcraft one...

Marty and Jeff set mine to rev on start up again and all is peachy. And yes, all cars carbed or injected run a tad rich on start up, otherwise they would die. (IAC or choke)


Builder Of Badassery


Are your thoughts the same if mine does idle,?
justbob
06-27-2015, 10:54 AM
Does yours have any start up rev like the factory tune had?


Builder Of Badassery
Finally
06-27-2015, 11:22 AM
Does yours have any start up rev like the factory tune had?


Builder Of Badassery


Lol I had to go out and start it to see,it fires up and drops to 900 rpm and stays there,funny thing is now the ABS and Brake light is staying on now,maybe it's got to do with the car sitting in the heat outside for a week but this also has never happened before..
justbob
06-27-2015, 03:05 PM
Almost sounds like an injector leaking by. You say it drops to 900 so I'm assuming it revs higher like I asked. But you say it's rough like loading up till you clear it out. Sounds like it's time to pull the plugs and compare to start with.

As for your brake and ABS, run a scan and check the fluid.




Builder Of Badassery
Finally
06-27-2015, 04:05 PM
Almost sounds like an injector leaking by. You say it drops to 900 so I'm assuming it revs higher like I asked. But you say it's rough like loading up till you clear it out. Sounds like it's time to pull the plugs and compare to start with.

As for your brake and ABS, run a scan and check the fluid.




Builder Of Badassery

It shoots too about 1500 and immediately drops to 900 rpm,we have some hot weather right now so it didn't run bad on startup this time..
FreddieH
06-27-2015, 07:02 PM
Make sure CAI is mounted tight, any air leak can cause problems
Badass_forever
06-27-2015, 07:08 PM
check you battery connections, if you have lights on the dash now for no reason you could be starting to have a bad connection.
Finally
06-27-2015, 09:40 PM
check you battery connections, if you have lights on the dash now for no reason you could be starting to have a bad connection.

Funny thing is I went out to take her for a rip and they are not on,terminals are clean and tight.
Thanks
Tony
Finally
06-27-2015, 09:42 PM
Make sure CAI is mounted tight, any air leak can cause problems

Great idea,I had my son clean the TB and MAF last,while I thought him to check and double check I'll give it a look over tomorrow.

Thanks
Tony
martyo
06-28-2015, 03:41 PM
Great idea,I had my son clean the TB and MAF last,while I thought him to check and double check I'll give it a look over tomorrow.

Thanks
Tony

What were the results?
Finally
06-30-2015, 08:55 PM
What were the results?

Sorry Marty just have not got to it yet,tomorrow's a holiday I post up what I find..


Tony
Finally
07-01-2015, 07:29 PM
So I gave it the once over and all is snug with the CAI,could this issue be that the 02's just need replacement.
I already have two new one to install, they are NTK 22500's.from what I can figure is they are the down stream.can anyone confirm this for me.

Thanks
Tony
Finally
08-01-2015, 10:24 AM
Hi guys
Could any of the symptoms I described happen if a battery was going bad,I went out this morning and she was completely dead,I put my tester on it and said bad battery. .
Finally
08-02-2015, 08:47 AM
Alllllllllllllllllllllllllll righty than
camelgrundle
08-02-2015, 08:54 AM
Get a new battery?
Finally
08-02-2015, 09:56 AM
Get a new battery?

Hahaha gotta wait for Monday cause I really want to put a Ford unit in her.
BigM460
08-02-2015, 10:51 AM
So I gave it the once over and all is snug with the CAI,could this issue be that the 02's just need replacement.
I already have two new one to install, they are NTK 22500's.from what I can figure is they are the down stream.can anyone confirm this for me.

Thanks
Tony

Do you have anything to watch the O2 voltage and fuel trims when you fire it up. I had similar issues with an O2 that was going bad. Wouldn't heat anymore and was very slow when it did work. Have also had issues with water getting in the O2 after installing the headers. Should be pretty evident if you have an O2 issue. I use the Torque app.
Finally
08-02-2015, 11:22 AM
Do you have anything to watch the O2 voltage and fuel trims when you fire it up. I had similar issues with an O2 that was going bad. Wouldn't heat anymore and was very slow when it did work. Have also had issues with water getting in the O2 after installing the headers. Should be pretty evident if you have an O2 issue. I use the Torque app.

I don't have a AF gauge but should,I'll check with Marty if he can set me up with one along with a trans temp gauge.
I ordered the upstream 02's from The local Ford and will pick them up also on Monday and look for any signs of leaks when I'm under the car,by torque app I'm assuming it's a sealant ?

Thanks
Tony
BigM460
08-02-2015, 02:50 PM
I don't have a AF gauge but should,I'll check with Marty if he can set me up with one along with a trans temp gauge.
I ordered the upstream 02's from The local Ford and will pick them up also on Monday and look for any signs of leaks when I'm under the car,by torque app I'm assuming it's a sealant ?

Thanks
Tony

It's an app for your smart phone. Need an obd2 bluetooth dongle and the app, and you can monitor all the things your computer does, on your phone.
Like this one on ebay. You can also look up videos on YouTube on folks using the app.
http://m.ebay.com/itm/Mini-ELM327-V2-1-OBD2-OBDII-Bluetooth-Adapter-Auto-Scanner-TORQUE-ANDROID-US-BL-/291261648793?nav=SEARCH
Finally
08-02-2015, 03:20 PM
It's an app for your smart phone. Need an obd2 bluetooth dongle and the app, and you can monitor all the things your computer does, on your phone.
Like this one on ebay. You can also look up videos on YouTube on folks using the app.
http://m.ebay.com/itm/Mini-ELM327-V2-1-OBD2-OBDII-Bluetooth-Adapter-Auto-Scanner-TORQUE-ANDROID-US-BL-/291261648793?nav=SEARCH

I didn't know about those. Time for a cold beer and shop eBay. Curious,can I not check those with the programmer.

Thanks
BigM460
08-02-2015, 03:21 PM
I didn't know about those. Time for a cold beer and shop eBay. Curious,can I not check those with the programmer.

Thanks

If you have one that does.
Finally
08-02-2015, 04:22 PM
If you have one that does.


The one I got from Marty with his program is the SCT X4
Finally
08-04-2015, 04:50 PM
Well the new battery is in,I fired her up and it didn't seem to show the symptoms upon first fire up that it was doing.now I
L take it for a good boot and see if any codes pop up.
Too all that have responded thanks for you suggestion and help.
Marauderjack
08-09-2015, 10:16 AM
It's an app for your smart phone. Need an obd2 bluetooth dongle and the app, and you can monitor all the things your computer does, on your phone.
Like this one on ebay. You can also look up videos on YouTube on folks using the app.
http://m.ebay.com/itm/Mini-ELM327-V2-1-OBD2-OBDII-Bluetooth-Adapter-Auto-Scanner-TORQUE-ANDROID-US-BL-/291261648793?nav=SEARCH

I bought one of these and it works on every vehicle I've tried....EXCEPT MY MARAUDER!!:mad2::argue:

Any tricks I might be missing??