Check engine light/timing belt slip code HELP!!

[timmysdell]

I have a 1995 talon 2.0 n/t. Waterpump was leaking so pulled timing belt and waterpump off and replaced. After running a few minutes check engine light comes on, I scanned it with my snap on scanner and it comes up with code for timing belt skipping one or more teeth, I have pulled apart and retimed several times and timing is always on the money. Car also has a slight miss/stumble at idle but runs great at higher rpms. I have done timing belts before and have had the shop foreman at the truck dealership that i work at check out and we are both lost. Help PLEASE tired of pulling what hair I have left out. Timmy

 

[luv2rallye]

What code are you getting? I don't see any code for TB skipping a tooth (and don't see how it would know).

 

[timmysdell]

I think it was code 11 then in description it reads timing belts skipped one or more teeth. that is with the asian/imort card in scanner. I've tried the "key cycle method" but always get a code for an o2 senor, and tps sensor. but they both worked fine before belt was installed. car runs good off idle but does have a small studder at idle and smells a little rich.

 

[luv2rallye]

ok - are you sure you don't also have a bad O2 sensor since that is what the key cycle method code says and your running rich? Perhaps their connectors aren't making contact or the wire broke. In my N/T section it says: the PCM illuminates the malfunction indicator lamp (service engine soon) only for diagnostic trouble codes that effect vehicle emissions and it remains on until code is erased". It also suggests erasing it (disconnect battery for few minutes) and see if it returns.

As for the 11 code (which is P1390), it says crankshaft position sensor improperly installed, camshaft position sensor improperly installed, or their connectors improperly connected. It also says to disconnect the negative battery cable for a minute to synchronize the camshaft position sensor with the crankshaft position sensor.

 

[timmysdell]

Thanks, I have already cleared codes several times with scanner and unhooked battery everytime i have checked or tried to retime. I will go recheck the flash code again. I have a chilton manual and it is what says o2 code but does not have list for my specific car. Would O2 cause a rough idle??? I also don't know why or how the snap on scanner can tell belt has slipped. DO you know where the crank and cam sensors are? Maybe I bumped one of them during install. We had a trans out of a durango awhile ago at work and it drove my tech nuts because light cel came on and it missed bad, we later found that he bumped crank sensor and it could not read off of flywheel. Thanks for all of the help so far. Can't wait till my baby is back to normal.
Timmy

 

[luv2rallye]

I've got the '99 Mitsu manuals. Yes a bad O2 sensor can cause a rough idle (ECU is fooled into setting improper mixture). Of course there are many other reasons for rough idles too. What code are you getting for the bad O2?

Code 11 is set "When camshaft position sensor is offset from the crankshaft position sensor one tooth or more". So it looks for these signals to be in sync or code 11 is set. Sounds like you have one of the sensors out of position (if your TB is on correctly). The Cam PS is on the driver's side end of the exhaust camshaft. The crank PS is right above the oil filter.

 

[timmysdell]

I WAS GETTING A FLASH CODE OF 11 AND A 12. WITH DOING THE KEY CYLE PER CHILTONS MANUAL. BUT THE CHART IN MY MANUAL DOES NOT GO UP TO A 1995 2.0 THE MANUAL ITSELF GOES FROM 90-98 BUT FLASH CODE CHART DOES NOT. DOES YOUR MANUAL SHOW THOSE TWO CODES. I ALSO HAD MY DAD CHECK TIMING MARKS TODAY AND HE SAID IT ALL LOOKS DEAD ON. RIGHT NOW I AM LEAVING ALL COVERS OFF UNTILL I GET FIGURED OUT, BUT DON'T WORRY IT IS PARKED IN SHOP UP IN THE AIR AND I AM STUCK DRIVING A CHEVY. THANKS FOR ALL THE HELP SO FAR HOPEFULLY WE CAN GET MY BABY RUNNING GOOD AGAIN. TIMMY

 

[luv2rallye]

There are many "key dance" code 11's. 1995 and on use a OBDII diagnostic port which you need to connect a scan reader to and read out the Pxxxx code to narrow it down. Some auto stores (like Checker) will loan you their scan reader for free.

 

[timmysdell]

I Just Got Back From My Shop And Reran Everything. Flash Codes Are 11,12,52,55. Snap On Were 11,52. In Troubleshoot Mode 11 Says Could Be Timing Belt Skipped, Intermittent Cmp/ckp Signal, No Crank Signal At Pcm. I Ohmed Out Crank And Cam Sensor Wires Per Manual, All Ok. I Then Pulled Out Crank Sensor And It Looks Like Something May Have Been Rubbing On The End But I Want To Match Up With A New One To Make Sure Making Isn't Normal.(i Hope It Is) Code 52 Is O2 Signal Rich. Let Me Know If All Of This Makes Sense And Sounds Correct. Thanks Again Timmy

 

[luv2rallye]

Yep it all makes sense. Sounds like your crank sensor is intermittent. Probably should replace it. Also check for crankwalk as that will cause rubbing on the crank sensor (severe crankwalk destroys it).

For code 52 (fuel system rich) my book says to check Map sensor output, injector, fuel pressure, intake air leaks, and O2 sensor.

 

[timmysdell]

I think I will get a new one and try after work. I will let you know thanks again for all the help. Timmy