Duduglanza Posted December 5, 2014 Share Posted December 5, 2014 My Friend has an ep 91. A problen has evolved in its own.. Once he starts to throttle up its starts backfiring and looses all power. then at certian times it takes all the throttle at once and boost normally. we tried replacing leads , plugs and distributor caps & even map sensor.The only mods are RRFPR and a screamer pipe. apart from that its standard ct9. No fault codes are logged.Any help? Quote Link to post Share on other sites
Socks Posted December 5, 2014 Share Posted December 5, 2014 why is the an aftermarket FPR if its all stock? Remove it, its pointless and only going to cause you hassle like this! Quote Link to post Share on other sites
Ollieh17 Posted December 5, 2014 Share Posted December 5, 2014 Tried replacing the coilpack, mine did a similar thing and it was that alongside the wire to it earthing Quote Link to post Share on other sites
Duduglanza Posted December 5, 2014 Author Share Posted December 5, 2014 Will try another coilpack then and see what happens. I dint think the rrfpr is the problem. It was fine and worked a while with it. Quote Link to post Share on other sites
daniel_g Posted December 5, 2014 Share Posted December 5, 2014 What pressure is the FPR set to ? Quote Link to post Share on other sites
Duduglanza Posted December 6, 2014 Author Share Posted December 6, 2014 Sorted loose earth to gbox ... thats all Quote Link to post Share on other sites
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