Please help i've recently done the head on my 1.8 8v gti pb engine golf. Checked emmisions on the machine thats pot on, Idle @ 900 and Co2 is 1.8. But it still wont start it tries to turns over but wont fire been on 20 mins this morning.Normally only takes a couple of attempts to start it.. Drove it 50 mile yesterday and it wasn't running great only getting 25 mpg. Slow and sluggish.. All Timing seams to be ok ?
Changed that.. Messed with timing again and it starts ok now but the car is running flat and its only gettin 20-25mpg and thats driving like a sunday driver. I'm so Confused now like.
Av used strobe light everything spot on, Its 100% better but still wont start straight away still have to take blue sensor plug off New sensor fitted aswell . It really starting to Pee me off now its gettin put up for sale
could it have a cold start valve.The thing just dosen't wanna start on a morning and av changed the Blue temp Sensor everything.. Timings sorted. any ideas please..
If its not 1 thing its another at the minute. Slowly but surely starting to give in like. By the sounds ov it a think av got rubjonny stumped. 1st for everything i suppose lol
so you have to disconnect the blue temp sender to get it to started? are you 100% certain the timing is spot on, using the FAQ?. then it drives/goes fine? and hot starts? does it ever start and be on three cylinders for a while or anything? fuel pump primes and stops as you turn ignition on.? when i had a head done (digi 8v)and re-assembled it one of the valves wasnt fully closing and the car ran on three bloody cylinders sounding like a tank, didnt clear up though, so had to take the head off again.
Everything seems spot on, All timing checked by unit 21 who know golfs inside out, Even done a compression test and thats fine, Changed knock sensor still wont start on a morning unless i take plug out. once it starts its fine.
something isnt right as I'm sure you figureed out, with the sensor unplugged it should be much more difficult if not impossible to get the car started from cold. has the AFM been swapped, and are you sure you dont have a massive air leak somewhere? check the inlet mounting bolts, they seem to work loose on 8vs
Whats the AFM mate... When the lads fitted the inlet he's replaced the Alan Bolts with normal bolts and washers, wonder if theres air gettin sucked in from here. Other thing is i drive it into work 20 minute trip, 8 miles get to work 8.00 am. Dont touch car till 5.30pm and it starts without any problem
its the big metal square thingy bolted on the back of your airbox interesting about the bolts & washers, if they were too wide there might be an issue with them seating properly, best to have a look with a torch & mirror
Yeah changed AFM with second hand original. Never tampered with. Its a confusing issue this one isn't it. Cheers for the help...
Heeelllpppp The car now is firing up but just isn't holding Revs and cuts out. Av changed the knock sensor aswell which sits on the front ov the Block.. But once the blue plug comes of the sensor it starts ok..
