My car has started to hold back on boost ?
#1
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My car has started to hold back on boost ?
Hi recently my car has started to hold back when I'm on boost in first gear
It just feels very flat and only boost's to about .9 bar but second third gear
is OK boosting right up to 1.4 bar only some times holds back in second or third at high rpm and also the idle gets a bit lumpy when hot.
plugs are new ngk 7 with .6mm gap. can this be my z32 maf starting to fail.
It just feels very flat and only boost's to about .9 bar but second third gear
is OK boosting right up to 1.4 bar only some times holds back in second or third at high rpm and also the idle gets a bit lumpy when hot.
plugs are new ngk 7 with .6mm gap. can this be my z32 maf starting to fail.
#2
Not 100% but dont think it'll be your MAF as it would hold back in every gear and wouldn't make it run rough at idle. Could be the lamb. sensor giving dodgy readings hense it being ok then not and cause rough idle. Or it might even be MAP sensor but again dont think this would make it run rough at idle.
I had a problem with my '99 turbo 2000 hesitating under boost and this was the plugs, in fact one of them had come loose in the head! I put some denso plugs in and it cured the hesitation.
I had a problem with my '99 turbo 2000 hesitating under boost and this was the plugs, in fact one of them had come loose in the head! I put some denso plugs in and it cured the hesitation.
#6
Check inlet manifold for air leaks,If you have vac-boost gauge on tickover you should show 19 hg vac,if it is low- manifold leak-low flickering-inlet valve.Plugs-HT Contacts
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