wont rev past 2250
ive just tried to drive my vl 6 cyl auto home from work and every time it goes above 2250rpm, all revs drop out until i pull my foot off the accelerator.
as soon as i put it back on, it goes sweet unless i go above 2250rpm. it doesnt missfire on one cylinder it wont fire on any of them.
it works fine when in neutral or park, and even when i sit in it and stall it up (foot hard on brake, in gear and rev as hard as you can.)
its got a new cas, new coil, new coil lead and i was looking around wiggling wires on things trying to make it fault but couldnt.
anyone had this before? any ideas what to try?
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
Could possibly be the air flow meter.
1988 VL Berlina turbo 5 speed
http://forums.justcommodores.com.au/...ml#post1446411
1987 VL SL turbo 5 speed ~STOLEN~
http://forums.justcommodores.com.au/...ed-manual.html
yeah cheers mate, i did a search and found a guy having the same trouble adjusted his afm resistance to 3.5v at pins 1 + 6
thought i'd give this a try. cant do it today though as my multimeter's still at work
damn. lol
i'll keep you posted if its still rooted tomorrow arvo.
Last edited by Panama; 27-08-2008 at 06:28 PM.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
NEEDS MORE POWER!
sounds exactly like my car, for four years my car has been doing this I have been told fuel pumps, cas, and afm, i have changed them all and she still does it, I haven't adjusted the afm tho, it is still drivable when I go to start it I let the pump run until I hear it stop (7 seconds) then start it and drives no problems if I start it straight away it won't go over 2000rpm???????????????
Nobody wants to play with me
ƃuoɹʍ ʇsnɾ sı sıɥʇ
take the afm connector off and clean up the contacts perfectly...
Banned
if its not the AFM i would look into the fuel pump and fuel pressure regulator. Maybe even dodgy or clogged injectors
ok contacts on afm plug are schmicko.
test volts from pins 1 + 6 at 2.8v. adjust to 3.50v
test volts on pins 3 + 4 at 1.24v
didnt make a smidgen of difference.
will try a fuel filter tomorrow
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
turned out to be fuel filter. so i rigged up two of them in parallel, so it will hopefully
take heaps longer to clog up.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
2250 is the revs the VL will cut out at if there's a fault (maf sensor etc) like a limp home mode. I think the filter was a coincidence to what was/is really wrong with the car
youre exactly right, because its did it again today as it was a hot afternoon.Originally Posted by greenfoam
can you possibly find a list of things that cause limp mode? neither max ellery's or haynes have been much help with this problem.
i'm thinking its ignition module.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
NEEDS MORE POWER!
i have posted this problem at least twice to no avail, so i have given up i will just live with waiting 7 seconds to start my car, so, there won't be any quick getaways.
goodluck!
Nobody wants to play with me
no avail. ive tried an afm, but its the same as it was.
anyone know what bits can cause it to go into limp mode?
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
ok. so ive:
-checked fuel pressure, and its within specs outlined in haynes manual.
-ive tried a new afm
-its got a month old CAS
-it has a month old coil
-ive got a new ignition module.
-ive opened and contact cleaned every block connector in the engine bay
-ive installed 2 new fuel filters in parallel.
ive checked fault codes and they are 14, 23, 24, 31. nothing else
and it still wont rev past 2500 without dropping out. only happens when the air is warm though. the engine dies, and drops to 1500rpm, but if you hold your foot flat, it goes in spurts. doesnt cut out completely.
surely this must have happened to someone else at some time.
Last edited by Panama; 07-09-2008 at 08:23 PM.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
has mild super powers
What brand of AFM are u using ? becouse there is BOSCH and then there's those cheap n nasty ones off Ebay , i think there a borg brand , i bought one off ebay last week "brand new" and it's a peice of crap .
yeah i'd only use bosch. best reputation ever
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
has mild super powers
It could only be AFM , ECU or the CAS. . . ? I know u've replaced these items . would u know someone who has a VL so u could swap one by one ur AFM , ECU , CAS and posibly coil til you find the faulty part ? What's it like when you let it idle , does it idle ok n stuff ?
yeah im looking on ebay at an ecu atm. thats all else i can think it might be.. ive replaced the coil at the same time as the CAS. lol, i dont know anyone else whose got a vl. it idles beautifully. engine runs fine until it hits 2500ish then buh
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
has mild super powers
I might have one 4 sale if ur interested
how much? might be if its the right price.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
America just kicked in yo
Mine had a similar "mystery problem" where the car would just die randomly, turned out to be the 2 middle sparkplugs were not replaced by ultratune epping VIC when they serviced my car. Took the car there to get it fixed and they said it was this, then it was that. $1000ish later and problem still there I took it to bresciani racing who took pity on me and sorted it out.
Later on had another mystery problem and it was the shaft on the dizzy had too much play and was knocking out the CAS temporarily.
One day their ultratune store will be a pile of smoldering rubble LOL (not by me tho hehe KARMA)
========My Statesman 20's Mafless and 3.9's========
lol, yeah i just did the cas and checked the play in the dizzy shaft though. ultratune bastards lol.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
has mild super powers
hey Panama could u post a picture of the top of ur dizzy or the numbers n stuff on the top ? just so i know what sort of dizzy & cas ur car has and that way i can send u a ECU that will work with your CAS .
pm me your home email. im definitely not savvy with the posting of images on forums.
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
numbers on dizzy are as follows:
D6P84-03 8301
(NISSAN STAMP)22100 42L00
This is good site to watch.I found it informative as I have been researching a lot lately on such matters such as you talk about.
has mild super powers
Cheers man thats all i need
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