Rpm going down and stop around 1200 and after go down to 8/900 rpm

All the information you need on engine-problems is here. The engine includes the Turbo-charger, airco and everything else you'll find under the bonnet.

Moderators: jifflemon, coyote1980, Rachel

Post Reply
DEATH
480 Newbie
Posts: 25
Joined: Sat May 25, 2013 7:14 pm

Rpm going down and stop around 1200 and after go down to 8/900 rpm

Post by DEATH » Mon Jul 16, 2018 9:50 am

hello guys, sorry for my bad english,
yesterday i was working on my 92 480 turbo, i find some test cable connected, from when i bought the car i had issue about low rpm idle when cold, then yesterday i find that cable connected an after i disconnect.
Magic solution, with cold engine finally my turbo worm exactly aroum 1100/1000 Rpm, this was a good news form me, cause i own this car from six year and never understand why cold start Rpm was low, in reality i never intrested to resolve cause i keep 1000 rpm with my foot when start engine.
After this good news, happen the bad news.
if i rev up with my food, engine rev very fast, more than before but, when rpm go down, rpm stop for one instant around 1200/1400 and after go down to correct 8/900 rpm, this never happen with test cable connected.
i want resolve this issue
Someone have some ideas?
thank at all for the help

DEATH
480 Newbie
Posts: 25
Joined: Sat May 25, 2013 7:14 pm

Re: Rpm going down and stop around 1200 and after go down to 8/900 rpm

Post by DEATH » Wed Sep 16, 2020 9:17 pm

Some help please?

jifflemon
480 Is my middle name
Posts: 1475
Joined: Sat Dec 17, 2016 11:03 am

Re: Rpm going down and stop around 1200 and after go down to 8/900 rpm

Post by jifflemon » Fri Sep 18, 2020 7:23 am

DEATH wrote:
Mon Jul 16, 2018 9:50 am
hello guys, sorry for my bad english
Your bad english is better than any of my foreign languages so no need to apologise.

Which test cable were connected? Do you have pictures?

Post Reply