Hello everyone ,
First of all i would like to mention that i am a new member and 2nd of all , i'd like to apologize in advance for my bad English . It's not my native language .
I own a E30 ,320is ( S14 Engine ) . The car originally was a 316i with a m40 engine . The swap was done years ago . I own the car for like 5 years . So far it was running smooth and nice with no problems at all . The last two week though things started going bad .
One day out of the blue the engine just stalled . It wouldn't restart if i wasn't letting it to cool down for a few minutes . The problem disappeared for a few days but sadly came back in a worse state . When was getting warm it was randomly stalling and was "refusing" to start again . I have changed Fuel pump , all pipes for possible leaks..I check fuel pressure regulator . Works good . I also replaced coil , ( not with an original one ) . I changed spark plus..I changed also the distributor cap and rotor and checked also the ignition wire set . They were also fine.
As i was going deeper and deeper analyzing the problem trying to see what is wrong i noticed another weird issue . The problem starts at full throttle . Thats when the engine stalls . Sometimes when you try to start it again the engine starts and runs for a few seconds but revs backwards ( i hope it makes sense.) . That goes on for a few seconds..4 or 5 till it stalls again . Also at full throttle it randomly misfires too . As i mentioned above..this problem starts when engine is warm .
Getting desperate here..Thanks in advance for your answers !
First of all i would like to mention that i am a new member and 2nd of all , i'd like to apologize in advance for my bad English . It's not my native language .
I own a E30 ,320is ( S14 Engine ) . The car originally was a 316i with a m40 engine . The swap was done years ago . I own the car for like 5 years . So far it was running smooth and nice with no problems at all . The last two week though things started going bad .
One day out of the blue the engine just stalled . It wouldn't restart if i wasn't letting it to cool down for a few minutes . The problem disappeared for a few days but sadly came back in a worse state . When was getting warm it was randomly stalling and was "refusing" to start again . I have changed Fuel pump , all pipes for possible leaks..I check fuel pressure regulator . Works good . I also replaced coil , ( not with an original one ) . I changed spark plus..I changed also the distributor cap and rotor and checked also the ignition wire set . They were also fine.
As i was going deeper and deeper analyzing the problem trying to see what is wrong i noticed another weird issue . The problem starts at full throttle . Thats when the engine stalls . Sometimes when you try to start it again the engine starts and runs for a few seconds but revs backwards ( i hope it makes sense.) . That goes on for a few seconds..4 or 5 till it stalls again . Also at full throttle it randomly misfires too . As i mentioned above..this problem starts when engine is warm .
Getting desperate here..Thanks in advance for your answers !