FAO Tuners HELP!! UPDATE!!
28-07-2012, 08:17 PM
#1
FAO Tuners HELP!! UPDATE!!
Been havin trouble with a mates car it holds back at 4k and its doing my head in.
Checked all loom fitted new connectors on 90% of it bleeped out all wires and ohms check.
New sensors
correctly gapped tps
as above with all phase and crank
tried changing ign amp. leads plugs ecu.fuel pump,pressure reg
BUT its intermittant
if you drive steady its fine all the way any ideas to try
People who know me no im not stupid
but this issue is pi**ing me off
cheers
Paul
Checked all loom fitted new connectors on 90% of it bleeped out all wires and ohms check.
New sensors
correctly gapped tps
as above with all phase and crank
tried changing ign amp. leads plugs ecu.fuel pump,pressure reg
BUT its intermittant
if you drive steady its fine all the way any ideas to try
People who know me no im not stupid
but this issue is pi**ing me offcheers
Paul
Last edited by costina; 30-07-2012 at 06:22 PM.
28-07-2012, 09:27 PM
#6
BANNED
BANNED
Join Date: Jul 2004
Posts: 1,124
Likes: 0
Received 0 Likes
on
0 Posts
Is there a fuel pick up pipe in the tank?
I've head of the bottom half of the pipe coming loose but unsure of it was a sapph or esc etc, have u tried it when the tank is full to eliminate that side of the fueling
I've head of the bottom half of the pipe coming loose but unsure of it was a sapph or esc etc, have u tried it when the tank is full to eliminate that side of the fueling
Trending Topics
28-07-2012, 09:57 PM
#8
I've found that life I needed.. It's HERE!!
when it gets to 4k
does it just go flat and not pull?
or is it like a missfire/rev limiter?
does it still do it if you let the revs build up on part throttle?
does it just go flat and not pull?
or is it like a missfire/rev limiter?
does it still do it if you let the revs build up on part throttle?
29-07-2012, 12:01 AM
#10
I've found that life I needed.. It's HERE!!
yeah could be fuel starvation,
check the pipes for any damage or anything that could restrict the flow,
pump could be on the road out,
are the lines big enough to flow enough fuel at high revs(assuming its a new build)
check the pipes for any damage or anything that could restrict the flow,
pump could be on the road out,
are the lines big enough to flow enough fuel at high revs(assuming its a new build)
30-07-2012, 06:33 PM
#18
will check cts wiring and prob by pass it for testing but will still need to link pin11 for other sensor earths.
whats your thoughts?
30-07-2012, 07:07 PM
#21
PassionFord Post Whore!!
Join Date: Jul 2004
Location: Wiltshire, Bath, chippenham area!
Posts: 7,428
Likes: 0
Received 4 Likes
on
4 Posts
Does it have a heat shield fitted to the turbo?
Totally clutching at straws, but I just remember a post from ages ago that msd stu made, about 2wd looms breaking down with heat from the turbo especially if they don't have a shield..
(seem to remember a picture of a totally melted loom actually
)
Although I'm sure you've checked all that actually.
Totally clutching at straws, but I just remember a post from ages ago that msd stu made, about 2wd looms breaking down with heat from the turbo especially if they don't have a shield..
(seem to remember a picture of a totally melted loom actually
)Although I'm sure you've checked all that actually.
Last edited by pee vee; 30-07-2012 at 07:08 PM.
30-07-2012, 07:09 PM
#22
Does it have a heat shield fitted to the turbo?
Totally clutching at straws, but I just remember a post from ages ago that msd stu made, about 2wd looms breaking down with heat from the turbo especially if they don't have a shield..
(seem to remember a picture of a totally melted loom actually )
Totally clutching at straws, but I just remember a post from ages ago that msd stu made, about 2wd looms breaking down with heat from the turbo especially if they don't have a shield..
(seem to remember a picture of a totally melted loom actually
)
31-07-2012, 05:53 AM
#23
Too many posts.. I need a life!!
Join Date: Jul 2003
Location: DUNSTABLE
Posts: 517
Likes: 0
Received 0 Likes
on
0 Posts
Have you done wiggle test on the loom to see if you can get it to stutter standing still?
My old Saff wore the loom insulation the bend where it comes over the back of the plenum and that gave high rev boost probs, also I've stripped looms to find the injector wires burned together where they bend over to the injectors. Ill dig the graph out to see if it starts at 4k because I had it on the rollers while it was doing it.
My old Saff wore the loom insulation the bend where it comes over the back of the plenum and that gave high rev boost probs, also I've stripped looms to find the injector wires burned together where they bend over to the injectors. Ill dig the graph out to see if it starts at 4k because I had it on the rollers while it was doing it.
31-07-2012, 07:36 AM
#24
I had this exact problem. I wouldn't have said until you said only when warm...
The fuel filter suggestion above was what I needed along with a new tank! We dropped the tank and the hose on the top just snapped off its mount. It was rotten. We poured out the petrol and it was BROWN.
Changed tank and filter and all was well!
I couldn't understand why it was only when warm though
31-07-2012, 06:07 PM
#25
Have you done wiggle test on the loom to see if you can get it to stutter standing still?
My old Saff wore the loom insulation the bend where it comes over the back of the plenum and that gave high rev boost probs, also I've stripped looms to find the injector wires burned together where they bend over to the injectors. Ill dig the graph out to see if it starts at 4k because I had it on the rollers while it was doing it.
My old Saff wore the loom insulation the bend where it comes over the back of the plenum and that gave high rev boost probs, also I've stripped looms to find the injector wires burned together where they bend over to the injectors. Ill dig the graph out to see if it starts at 4k because I had it on the rollers while it was doing it.
31-07-2012, 06:12 PM
#26
I had this exact problem. I wouldn't have said until you said only when warm...
The fuel filter suggestion above was what I needed along with a new tank! We dropped the tank and the hose on the top just snapped off its mount. It was rotten. We poured out the petrol and it was BROWN.
Changed tank and filter and all was well!
I couldn't understand why it was only when warm though
The fuel filter suggestion above was what I needed along with a new tank! We dropped the tank and the hose on the top just snapped off its mount. It was rotten. We poured out the petrol and it was BROWN.
Changed tank and filter and all was well!
I couldn't understand why it was only when warm though
Tank is a mk 2 escort std tank with a 15mm outlet at bottom feeding the pump. we used a swirl pot set up but the feed pump was'nt man enough to cope hence why i done the above which is a proven mod.
Now after i done this is was fine so we thought ok its sorted only to find its now back.
As said its does it when warm
cold its fine so the answer lies there.could be as simple as charge air temp. or fautly wiring to either cts. or again a faulty 02 sensor
31-07-2012, 06:51 PM
#27
Too many posts.. I need a life!!
Join Date: Jul 2003
Location: DUNSTABLE
Posts: 517
Likes: 0
Received 0 Likes
on
0 Posts
real arsehole one I had was when the fans came on the car died whilst driving but fine stationary.... Was the CPS wire being blown by the fans which caused a break and car dies!! But it all tested out fine.
31-07-2012, 07:16 PM
#28
That the problem with looms when your testing them they are fine but if the engine rocks tugs on the nicely cable tied loom caused the prob.
real arsehole one I had was when the fans came on the car died whilst driving but fine stationary.... Was the CPS wire being blown by the fans which caused a break and car dies!! But it all tested out fine.
real arsehole one I had was when the fans came on the car died whilst driving but fine stationary.... Was the CPS wire being blown by the fans which caused a break and car dies!! But it all tested out fine.
your correct a wiring fault can be a pain to rectify might bleep out ok and give a good ohm reading but under load is a different story
Hence why ive made a lead to test sensors will try as soon as poss
31-07-2012, 07:56 PM
#29
Too many posts.. I need a life!!
Join Date: Jul 2003
Location: DUNSTABLE
Posts: 517
Likes: 0
Received 0 Likes
on
0 Posts
you know what makes a nice handy tester an abs ecu plug made in to a breakout box.
04-08-2012, 08:15 AM
#30
So after a chat with mate it turns out to be not heat related.
So back to square one
He say it drives fine if you fettle the throttle but if you boot it holds back i'm still under the impression its fuel related.
So its a case of back out with the afr and check fueling again but this time keeping throttle on while it happens.
Bloody cars eh
So back to square one
He say it drives fine if you fettle the throttle but if you boot it holds back i'm still under the impression its fuel related.
So its a case of back out with the afr and check fueling again but this time keeping throttle on while it happens.
Bloody cars eh
Thread
Thread Starter
Forum
Replies
Last Post
TPM961
Restorations, Rebuilds & Projects.
19
15-01-2018 10:50 AM