and todays problem is..... - Saxperience

gowen87 · 25th March 2011, 22:53

mk1 1400 put vtr lump in with unlocked ecu, was running ok but idling high, then it cut out and wouldnt re start. been in the garage tonight and it starts and runs fine for afew minutes, then the Engine Management light comes on, it runs like a bag of S**t for afew seconds and cuts out. leave for afew minutes and it starts and does the same again. so far ive cleaned the idle control valve, if thats whats underneath the inlet through a rubber bracket. changed the crank sensor, and changed the coil pack. anyone else had this problem or have any clue as to what might be wrong with it?

Many thanks

Gareth

Railroader · 26th March 2011, 01:52

I check the coolant temp sensors, the problem sounds like its related to the engine warming up. You can check by removing the leads to the coolant sensors, if it runs ok then thats what it is

gowen87 · 26th March 2011, 09:51

This is what i thaught, its as if something is getting hot and then giving up the fight until it cools down again. going to get some sensors from a scrappy later to start the process of elimination. does this problem sound like a common fault?

matt_wolves · 26th March 2011, 09:59

ive got the same problem but ive changed the icv,map sensor,lambda sensor,both coolant sensors still doesnt run right??

gowen87 · 26th March 2011, 10:13

this could well be pointing towards the ecu that being the case!

kyle4256 · 26th March 2011, 18:10

sounds like the ecu aint been unlocked ? or could also be lambda sensor,
when the managment light came on did u get the code read?

Railroader · 26th March 2011, 18:22

Quote:

Originally Posted by gowen87

This is what i thaught, its as if something is getting hot and then giving up the fight until it cools down again. going to get some sensors from a scrappy later to start the process of elimination. does this problem sound like a common fault?

Just try it like wot I said, disconnect the wires. Ive only had one Saxo and its never happened to me, but Ive seen it mentioned on here a few times

Railroader · 26th March 2011, 18:23

Quote:

Originally Posted by kyle4256

sounds like the ecu aint been unlocked ? or could also be lambda sensor,
when the managment light came on did u get the code read?

If the ECU wasnt unlocked it wouldnt run at all.

Why is it that most lads on here can't read?

kyle4256 · 26th March 2011, 19:20

i have an ecu that has been locked and car will start for a short period of time then cut out

gowen87 · 27th March 2011, 22:21

been doing some investigating today, changed the icv and now i have the same problem but where the revvs should be, but what i did was unplugged the throttle position sensor, the revvs went high but it ran alot better and continued to run with the engine light on, the minute i plugged the throttle position sensor back in it ran ran like a bag of s*t for afew seconds then cut out. so im thinking that this sensor is at fault. its the only one i havent changed. does that make sense to anyone else?