hi guys im new here. I have a bmw 316ise 2001 with the engine management light and the revs go up and down occasionary. on two occasions in 2 months it could not start. After I pressed the clutch a few times it started. I had a diagnosis at the mechanics at the EOBD code reading was PO170 which could be either intake leak,Air system,fuel pressure/pump, injectors, EVAP canister purge valve or HO2s. Does anybody know what the problem specifically is? The mechanic dont seem to know. Thank you in advance.

hi guys im new here. I have a bmw 316ise 2001 with the engine management light and the revs go up and down occasionary. on two occasions in 2 months it could not start. After I pressed the clutch a few times it started. I had a diagnosis at the mechanics at the EOBD code reading was PO170 which could be either intake leak,Air system,fuel pressure/pump, injectors, EVAP canister purge valve or HO2s. Does anybody know what the problem specifically is? The mechanic dont seem to know. Thank you in advance.

several possible faults.

1: the 316 i bleave has an airpipe on top of the engine under the cover, ensure thats not collapsed, can cause hunting/ refusal to start

2: Try giving the ICV (idle controll valve) a good clean, plenty of vids on youtube to tell ya how to do it, very easy job.

3: Fuel Pump may be giving up the ghost.

4: If you clean the ICV, check all the induction boots for cracks, this can cause loss in vaccume and cause alot of problems, some very severe.

5: When was it last serviced? may be worth getting a major service done. IE Fuel filter, Oil Filter, Air Filter, Cabin filter, Oil etc etc

6: If none of the above, Coulda have an O2 Sensor gone or on the way out. not all that knowlageable of the 16 but hope it helps.

bout all i can think of, if i think of any more possibilities, all post up. Also welcome to the forums :)

thanx mate, will try those options.

is there a way to reset these lights. i went back to the dealer and they said my BMWwas fine after they fixed it and the light should go away. so now what. did they really fix it or do i tape over the light

lol bit of a dodgy one that, if they fixed it they should have reset the light. if it is still on take it to a mechanic to get it reset or try it yourself. i will look on my computer at work on how to reset the light manually, their is a way, i just cant remember off the top of my head.