Scoobyghost Posted August 28, 2015 Share Posted August 28, 2015 So..bit of a strange one. After exiting a roundabout in 2nd and applying the loud peddle I only got 0.7-8 bar boost. I'm set to 1.3. Into 3rd and had full boost. Went up the road to have a testing session. Tried again and 2nd gave me full boost. Pulled up at a set of lights. Didn't go full launch but once in to the gear I gave it some again in 1st and only got 1.0-1bar. Into 2nd and had full boost again no further issues. Got home and had a listen/check. Couldn't hear any air leaks or dodgy isles. No cel on during the issue period. So, brains ready. Let's have a pick. What do you reckon? Quote Link to comment Share on other sites More sharing options...
martyc Posted August 29, 2015 Share Posted August 29, 2015 Boost is also dependant on load, so you may not get full boost depending on conditions. Or your wastegate could be getting weak maybe? Sent from my iphone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted August 29, 2015 Author Share Posted August 29, 2015 Conditions were the same as previous runs so that should effect it. Could be a wastegate issue/actuator as that would be inconsistently showing as a fault. Good shout Marty Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted August 29, 2015 Share Posted August 29, 2015 Has your boost solinoid had a clean since you've owned it and How much fuel was in the tank at the time ? Cos I had 1/4 of a tank and hit boost cut twice on the same bit of road near me .It's when going up hill, hard right then 3/4 throttle in 2nd . It was fine shortly afterwards in a straight line with nothing logged on the ecu . I just put it down to fuel slosh in the tank as it only does it on that stretch of road with a 1/4 of a tank For the time being i just don't "give it full beans" with low fuel exiting a right hander and it seems like a good excuse to put "fit a swirl pot" to my never ending list [emoji5] Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted August 29, 2015 Author Share Posted August 29, 2015 Has your boost solinoid had a clean since you've owned it and How much fuel was in the tank at the time ? Cos I had 1/4 of a tank and hit boost cut twice on the same bit of road near me .It's when going up hill, hard right then 3/4 throttle in 2nd . It was fine shortly afterwards in a straight line with nothing logged on the ecu . I just put it down to fuel slosh in the tank as it only does it on that stretch of road with a 1/4 of a tank For the time being i just don't "give it full beans" with low fuel exiting a right hander and it seems like a good excuse to put "fit a swirl pot" to my never ending list [emoji5] I know the fuel cut well. I've had it a few times the same way you described. But this wasn't a cut issue. I had rev but only low boost. The fuel cut is quite aggressive and bam there it is. This issue was just the car running normally at reduced boost. I haven't cleaned the solenoid myself so I may flush it over the weekend. I do the same at 1/4 tank or less. It catches me out coming off roundabouts sometimes. I thought it was a boost issue until Duncan explained the problem being a poorly designed tank. Quote Link to comment Share on other sites More sharing options...
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