Weyro Posted March 29, 2013 Share Posted March 29, 2013 (edited) So ive went back to the standard FPR and my car is now idling at an afr of 11.4, its also at around 12-13 when crusing at 60mph. Obviously this is way too rich, but the car is fine at WOT.Ive checked everything i can think of, coolant sensor, map sensor, IAT sensor, TPS, O2 sensor. I noticed that if i remove the VAC hose from the FPR it has no affect on the idle AFR, with my adjustable regulator, removing the vac pipe made it go rich. Any ideas?Cheers Edited March 29, 2013 by Weyro Quote Link to post Share on other sites
morgey Posted March 29, 2013 Share Posted March 29, 2013 O2 sensor? Quote Link to post Share on other sites
Weyro Posted March 29, 2013 Author Share Posted March 29, 2013 yea tried it too, forgot to say Quote Link to post Share on other sites
rmsnoel Posted March 30, 2013 Share Posted March 30, 2013 Is your standard regulator stuck from sitting in your garage.maybe? Quote Link to post Share on other sites
Weyro Posted March 30, 2013 Author Share Posted March 30, 2013 It seems to raise fine which is weird, I'll try soaking it in wd40 for a while Quote Link to post Share on other sites
starletburkie Posted March 30, 2013 Share Posted March 30, 2013 Have U a updated fuel pump? Quote Link to post Share on other sites
5T4R7ET N/A Posted March 30, 2013 Share Posted March 30, 2013 That AFR you mentioned is for cold start up and driving so you could have a temperature sensor problem or sticking thermostat? Quote Link to post Share on other sites
Weyro Posted March 30, 2013 Author Share Posted March 30, 2013 yea i have a walbro i replaced the temp sensor not long ago, how would i test for sticking thermostat? cheers Quote Link to post Share on other sites
starletburkie Posted March 30, 2013 Share Posted March 30, 2013 what ecu have you? id to lean off my emu with a td fuel pump on idle was around 12.2 on idle Quote Link to post Share on other sites
Weyro Posted March 30, 2013 Author Share Posted March 30, 2013 just standard ecu Quote Link to post Share on other sites
5T4R7ET N/A Posted March 31, 2013 Share Posted March 31, 2013 yea i have a walbro i replaced the temp sensor not long ago, how would i test for sticking thermostat? cheers just replace the thermostat, they are very cheap. Quote Link to post Share on other sites
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