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The Terminator
Engine/Tuning
Need help for tune / bad idle
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<blockquote data-quote="fsxfreak1992" data-source="post: 16748896" data-attributes="member: 189226"><p>I swaped from a stock Eaton to a GEN1 2.3L Whipple and installed a Return Style Fuel System during winter and a 200A Alternator with Big 3 wire upgrade.</p><p>I´m doing a remote tune with a very well known men</p><p>My tuner send me a idle tune according to my modifications. It starts normally but after ~30 sec it idles bad.</p><p>93 Octane Tune should be good, so it must be some mechanical /physical issue</p><p></p><p>Here a short idle video (at the beginning and end I manually hold the RPM to around 1k RPM)</p><p></p><p>[MEDIA=youtube]i7AZcaP4kNc[/MEDIA]</p><p></p><p>What I have done so far:</p><p>- checked all vacuum lines, used leak detection spray around the blower --> no leaks</p><p>- Fuel Pressure is set to 40 PSI (according to gauge on fuel regulator and FRPS(read out via SCTX4))</p><p>- No fuel in vacuum lines from FRPS and vacuum line from regulator)</p><p>- Unplugged FRPS --> no change</p><p>- I pulled the spark plugs, three of them looked little wet</p><p>- filled the fuel tank with fresh 93 octane fuel (no boosters used)</p><p></p><p>It showed me 4 codes</p><p>P 0406 and 0403 --> both EGR related codes, I forgot to tell my tuner that I removed it</p><p>P2195 and P 2197 after the engine died by itself --> O2 sensors showed engine was to rich but why?</p><p></p><p>My mod list (engine wise):</p><p>- GEN1 2.3L Whipple with 3" pulley</p><p>- Return style fuel setup with ON3 Hat, 2x 320lph pumps, Fore Fuel Regulator, Dash8 feed, Dash6 return, Stock Rails, 60lbs Bosch Injectors (flow tested and cleaned before install)</p><p>- New NGK spark plugs gapped .028</p><p>- JBA Shortys, Magnaflow X-Pipe with 200 Cats, SLP Loudmouth II</p><p>- EGR Delete</p><p>- Cooling Mods (170° Reische thermostat, LFP Heat exchanger, head cooling mod)</p><p>- 200A KMJ Alternator with Big 3 Wire upgrade</p><p>- Upgraded double bearing Idlers, Roush Tensioner, Snub Idler</p><p></p><p>All the help is appreciated</p></blockquote><p></p>
[QUOTE="fsxfreak1992, post: 16748896, member: 189226"] I swaped from a stock Eaton to a GEN1 2.3L Whipple and installed a Return Style Fuel System during winter and a 200A Alternator with Big 3 wire upgrade. I´m doing a remote tune with a very well known men My tuner send me a idle tune according to my modifications. It starts normally but after ~30 sec it idles bad. 93 Octane Tune should be good, so it must be some mechanical /physical issue Here a short idle video (at the beginning and end I manually hold the RPM to around 1k RPM) [MEDIA=youtube]i7AZcaP4kNc[/MEDIA] What I have done so far: - checked all vacuum lines, used leak detection spray around the blower --> no leaks - Fuel Pressure is set to 40 PSI (according to gauge on fuel regulator and FRPS(read out via SCTX4)) - No fuel in vacuum lines from FRPS and vacuum line from regulator) - Unplugged FRPS --> no change - I pulled the spark plugs, three of them looked little wet - filled the fuel tank with fresh 93 octane fuel (no boosters used) It showed me 4 codes P 0406 and 0403 --> both EGR related codes, I forgot to tell my tuner that I removed it P2195 and P 2197 after the engine died by itself --> O2 sensors showed engine was to rich but why? My mod list (engine wise): - GEN1 2.3L Whipple with 3" pulley - Return style fuel setup with ON3 Hat, 2x 320lph pumps, Fore Fuel Regulator, Dash8 feed, Dash6 return, Stock Rails, 60lbs Bosch Injectors (flow tested and cleaned before install) - New NGK spark plugs gapped .028 - JBA Shortys, Magnaflow X-Pipe with 200 Cats, SLP Loudmouth II - EGR Delete - Cooling Mods (170° Reische thermostat, LFP Heat exchanger, head cooling mod) - 200A KMJ Alternator with Big 3 Wire upgrade - Upgraded double bearing Idlers, Roush Tensioner, Snub Idler All the help is appreciated [/QUOTE]
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