check engine light is on - Page 2 - The Ford Focus Forum

**snake eyes** · 09-21-2009, 11:49 AM

um these things happen when you modify cars man. Could be your turbo took it out due to the higher pressures. If you wanted it to be reliable should of kept it stock.

<l><l>

**Dave&KersFocus** · 09-21-2009, 12:07 PM

CHeck your connections at your AIT sensor and your MAF sensor. Those are the only sensitive changes you made to your car since the turbo right? I would start there just to be sure

**Egz** · 09-21-2009, 01:24 PM

To be fair, you have modified the engine. You need accept that it will have quirks and small issues that will need to be solved. Its not Ford's fault.

**BoomBoy** · 09-21-2009, 04:18 PM

I will check the MAF sensor. I have no idea what AIT sensor is.

PS. I got one code now it is P0106. The other two codes went away. It may be because I didn't clear the codes when I installed the O2 sensor even though the engine light was not on after it's installed.

**Egz** · 09-21-2009, 10:12 PM

AIT is part of the MAF.

**BoomBoy** · 09-21-2009, 10:40 PM

Randy said the trouble is not the MAF. It is MAP/Speed Density sensor that is in the intake manifold. He said I shouldn't have to take it off to replace the sensor. Any idea where I can find it?

**Dave&KersFocus** · 09-22-2009, 04:54 AM

Quote:

Originally Posted by Egz

AIT is part of the MAF.

On the FSWerks kit you cut the wires to the stock MAF that controls your AIT and solder them to the Supplied AIT sensor they supply. Even though its still "part" of the MAF it is its own sensor on the FSWerks turbo kit located just before the throttle body and who is to say that it didnt go bad? Its just as sensitive as your MAF im assuming. BTW BoomBoy AIT stands for Air Intake Temperature Sensor

**BoomBoy** · 11-06-2009, 11:32 PM

Here is the update:

I replaced both oxygen sensor and MAP sensor and cleared the codes, but they came back on. The problem was not the sensors themselves. It could be wiring or the programming. I don't know.

The DTC codes are:
P0106 MAP CIR RANGE PERF
P0108 MAP CIR HI INPUT
PO132 OX S CIR H1 VOLT 1 S1

I took the car to the mechanic... they had no clue.

**Mabolzichjjl** · 11-10-2009, 12:44 AM

modded cars beg for this kinda stuff...
if they're made to run one way, and you're pushing them to run another, **** happens..

how does a mech not have a clue as to whats wrong! haha.. they should know these things!

sorry to hear about your luck. cant blame ford though

**locdowg7** · 11-10-2009, 09:47 AM

Have you checked fuses? I belive there is a power circuit that supplies both the MAF and your 02 sensors.

**BoomBoy** · 11-11-2009, 12:01 PM

I decided to reload the tuning program to see if it helped. It did, for a day. Now I just have P0106. I don't think it was a blown fuse. If it was, it would show up immediately, no?

It wouldn't hurt to check, though.

**locdowg7** · 11-11-2009, 02:37 PM

Quote:

Originally Posted by BoomBoy

I decided to reload the tuning program to see if it helped. It did, for a day. Now I just have P0106. I don't think it was a blown fuse. If it was, it would show up immediately, no?

It wouldn't hurt to check, though.

Yup cuz speculation will bite you in the arss.

Next I would get some MAF cleaner and try that out be carefull not to break those little coiled wires inside the MAF.

**locdowg7** · 11-11-2009, 02:42 PM

Oh and you dont have a MAP BARO is calculated by your MAF.

**BoomBoy** · 11-12-2009, 10:16 AM

MAF and MAP sensors are separate things.

**OmniFocus** · 11-12-2009, 12:01 PM

...and a Duratec car does indeed have a MAP sensor. It is located on the manifold near the throttle body.

**BoomBoy** · 11-12-2009, 03:03 PM

When I replaced the MAP sensor, I noticed the sensor had some dirt and grease on it. I don't know if some dirt was supposed to go through the manifold. I replaced it with a brand new MAP and then few days later the check engine lights up. Was it the dirt? Was the manifold somehow cracked?

I noticed a loose bolt near the belt assembly that secures the turbo piping. Some dirt apparently got in the belt assembly. Did the dirt get through all way to manifold? I secured it with a new, longer bolt because the stock one was too short to properly secure the turbo piping.

I checked all the turbo pipes and they were secured so I doubt some dirt got passed through to the throttle body. Thoughts?

**locdowg7** · 11-12-2009, 03:10 PM

Quote:

Originally Posted by OmniFocus

...and a Duratec car does indeed have a MAP sensor. It is located on the manifold near the throttle body.

Hahaha... guess I got a little taste of my own prior medicine. I just sepculated that the new Duratec has an inferred BARO like most other Ford vehicles. Must be something that crossed over from Mazda.

Learn something new every day.

09-21-2009, 11:49 AM	#26 (permalink)
snake eyes TEAM Member Join Date: Dec 2006 Location: houston (katy), tx Posts: 336	Re: check engine light is on um these things happen when you modify cars man. Could be your turbo took it out due to the higher pressures. If you wanted it to be reliable should of kept it stock. <l><l> __________________ 2005 ses zx3 5sp- svt 5 spokes and sitting on SVT suspension, some other random stuff, DONE! 1988 supra- the new project..... now running and working out the kinks, just a lil faster than the focus

09-21-2009, 12:07 PM	#27 (permalink)
Dave&KersFocus Junior Member Join Date: Dec 2006 Location: Surf City California Posts: 75	Re: check engine light is on CHeck your connections at your AIT sensor and your MAF sensor. Those are the only sensitive changes you made to your car since the turbo right? I would start there just to be sure __________________ Life is only what you make of it....And your car is only as fast as what you put into it.

09-21-2009, 01:24 PM	#28 (permalink)
Egz Moderwhiner Join Date: Nov 2000 Location: Tappahannock, VA Posts: 20,063	Re: check engine light is on To be fair, you have modified the engine. You need accept that it will have quirks and small issues that will need to be solved. Its not Ford's fault.

09-21-2009, 04:18 PM	#29 (permalink)
BoomBoy TEAM Member Join Date: Jul 2005 Location: Lusby, MD Posts: 718	Re: check engine light is on I will check the MAF sensor. I have no idea what AIT sensor is. PS. I got one code now it is P0106. The other two codes went away. It may be because I didn't clear the codes when I installed the O2 sensor even though the engine light was not on after it's installed. __________________ Selling: 2007 Liquid Grey Focus ZX5 Mod list: FocusSport Stage 2 Turbo, Magnaflow 2.5" Exhaust, Eibach Sportline Springs, FRPP Dampers, Progress 22mm RSB, Steeda Tri-Ax STS, VF Rear Engine Mount, SVT Rear Brakes, Black EAPs and many more. Look in Classified For Sale forum.

09-21-2009, 10:12 PM	#30 (permalink)
Egz Moderwhiner Join Date: Nov 2000 Location: Tappahannock, VA Posts: 20,063	Re: check engine light is on AIT is part of the MAF.

09-21-2009, 10:40 PM	#31 (permalink)
BoomBoy TEAM Member Join Date: Jul 2005 Location: Lusby, MD Posts: 718	Re: check engine light is on Randy said the trouble is not the MAF. It is MAP/Speed Density sensor that is in the intake manifold. He said I shouldn't have to take it off to replace the sensor. Any idea where I can find it? __________________ Selling: 2007 Liquid Grey Focus ZX5 Mod list: FocusSport Stage 2 Turbo, Magnaflow 2.5" Exhaust, Eibach Sportline Springs, FRPP Dampers, Progress 22mm RSB, Steeda Tri-Ax STS, VF Rear Engine Mount, SVT Rear Brakes, Black EAPs and many more. Look in Classified For Sale forum.

11-06-2009, 11:32 PM	#33 (permalink)
BoomBoy TEAM Member Join Date: Jul 2005 Location: Lusby, MD Posts: 718	Re: check engine light is on Here is the update: I replaced both oxygen sensor and MAP sensor and cleared the codes, but they came back on. The problem was not the sensors themselves. It could be wiring or the programming. I don't know. The DTC codes are: P0106 MAP CIR RANGE PERF P0108 MAP CIR HI INPUT PO132 OX S CIR H1 VOLT 1 S1 I took the car to the mechanic... they had no clue. __________________ Selling: 2007 Liquid Grey Focus ZX5 Mod list: FocusSport Stage 2 Turbo, Magnaflow 2.5" Exhaust, Eibach Sportline Springs, FRPP Dampers, Progress 22mm RSB, Steeda Tri-Ax STS, VF Rear Engine Mount, SVT Rear Brakes, Black EAPs and many more. Look in Classified For Sale forum.

11-10-2009, 12:44 AM	#34 (permalink)
Mabolzichjjl Rookie Join Date: Oct 2009 Posts: 44	Re: check engine light is on modded cars beg for this kinda stuff... if they're made to run one way, and you're pushing them to run another, **** happens.. how does a mech not have a clue as to whats wrong! haha.. they should know these things! sorry to hear about your luck. cant blame ford though

11-10-2009, 09:47 AM	#35 (permalink)
locdowg7 Junior Member Join Date: Jun 2009 Posts: 84	Re: check engine light is on Have you checked fuses? I belive there is a power circuit that supplies both the MAF and your 02 sensors.

11-11-2009, 12:01 PM	#36 (permalink)
BoomBoy TEAM Member Join Date: Jul 2005 Location: Lusby, MD Posts: 718	Re: check engine light is on I decided to reload the tuning program to see if it helped. It did, for a day. Now I just have P0106. I don't think it was a blown fuse. If it was, it would show up immediately, no? It wouldn't hurt to check, though. __________________ Selling: 2007 Liquid Grey Focus ZX5 Mod list: FocusSport Stage 2 Turbo, Magnaflow 2.5" Exhaust, Eibach Sportline Springs, FRPP Dampers, Progress 22mm RSB, Steeda Tri-Ax STS, VF Rear Engine Mount, SVT Rear Brakes, Black EAPs and many more. Look in Classified For Sale forum.

11-11-2009, 02:42 PM	#38 (permalink)
locdowg7 Junior Member Join Date: Jun 2009 Posts: 84	Re: check engine light is on Oh and you dont have a MAP BARO is calculated by your MAF.

11-12-2009, 10:16 AM	#39 (permalink)
BoomBoy TEAM Member Join Date: Jul 2005 Location: Lusby, MD Posts: 718	Re: check engine light is on MAF and MAP sensors are separate things. __________________ Selling: 2007 Liquid Grey Focus ZX5 Mod list: FocusSport Stage 2 Turbo, Magnaflow 2.5" Exhaust, Eibach Sportline Springs, FRPP Dampers, Progress 22mm RSB, Steeda Tri-Ax STS, VF Rear Engine Mount, SVT Rear Brakes, Black EAPs and many more. Look in Classified For Sale forum.

11-12-2009, 12:01 PM	#40 (permalink)
OmniFocus Moderator Join Date: Jul 2001 Location: Mowin' down the cones. (CA) Posts: 29,403	Re: check engine light is on ...and a Duratec car does indeed have a MAP sensor. It is located on the manifold near the throttle body. __________________ Vacuum Vulture Racing: The masters of ape latexing.

11-12-2009, 03:03 PM	#41 (permalink)
BoomBoy TEAM Member Join Date: Jul 2005 Location: Lusby, MD Posts: 718	Re: check engine light is on When I replaced the MAP sensor, I noticed the sensor had some dirt and grease on it. I don't know if some dirt was supposed to go through the manifold. I replaced it with a brand new MAP and then few days later the check engine lights up. Was it the dirt? Was the manifold somehow cracked? I noticed a loose bolt near the belt assembly that secures the turbo piping. Some dirt apparently got in the belt assembly. Did the dirt get through all way to manifold? I secured it with a new, longer bolt because the stock one was too short to properly secure the turbo piping. I checked all the turbo pipes and they were secured so I doubt some dirt got passed through to the throttle body. Thoughts? __________________ Selling: 2007 Liquid Grey Focus ZX5 Mod list: FocusSport Stage 2 Turbo, Magnaflow 2.5" Exhaust, Eibach Sportline Springs, FRPP Dampers, Progress 22mm RSB, Steeda Tri-Ax STS, VF Rear Engine Mount, SVT Rear Brakes, Black EAPs and many more. Look in Classified For Sale forum.

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