Missfire/Hesitation

Started by aeseaton, August 20, 2006, 09:26:44 PM

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aeseaton

August 20, 2006, 09:26:44 PM
Recently brought my 96 Bathurst R and have experienced a strange missfire/hesitation at 4000rpm in 3rd gear. If driving along at normal rpm (2500) and i then accelerate hard, as the engine revs through to 4000rpm i get a growling noise from engine n power drops. If i ease off and accelerate again it works fine. Doing this quite often now. Any ideas? Could it be mapping? Fuel pump? Plugs? Im a bit lost.
\'96 RX7 Bathurst R - 452 bhp on BNR twin turbos.
\'99 Impreza RB5 - 320 bhp daily driver.
\'04 CBR 600RR - Nuts warmer
\'96 Frontera TD - Motorway tug and tow slag.

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#1
August 20, 2006, 11:26:45 PM
Sounds like a vacum leak, check pipes to intercooler, second turbo comes on at about that so thats when under pressure  a a growl could be used to discribe vacum leak

AndrewC

#2
August 21, 2006, 01:38:27 AM
Sounds like it\'s bogging.
You will need to have the secondary fuel injectors cleaned and flow tested.
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