Annoying Tick when warm

StreetStang37 · 06-11-2002, 09:58 PM

Last week my car began making a tick when warm. I lowered the timing to 15* and upped the fuel pressure to 40psi and it still makes the tick. It only happens between 1700-2300 rpm. The codes I've pulled are 41 and 91 (lean condition). Should I up the fuel to 44 psi or so? I drove it before and it never made the tick (two-three weeks or so) before it started making the tick? With the engine off it pulls a nice fat 11. What should I do? If it were my egr would It pull a code for it? Should I just bump up the pressure? Im pretty sure the tick is pinging, but it sounds basically like an exhaust leak. Could it be my o2's? THX guys, your help will be appreciated.

gtsr515 · 06-12-2002, 05:33 PM

You sure your not just hearing the injectors? how about a bad throw out bearing? Exhaust leak?

StreetStang37 · 06-12-2002, 11:14 PM

I upped the pressure to 44#'s and the code went away. But now I was getting code 44 (right thermactor inoperative) and I read in a bunch of posts that they usually got that code and replaced the TFI and the code went away. Well, I changed the TFI since it's stock anyways and the code did go away, my low end (1000-2000rpm) seems to have improved and my idle stays at about 950 alot more. But now I heard some louder ticking/knocking and when I pulled the codes I got 91 (left HEGO sensor indicates system lean). What do I do now? bump up the fuel pressure to 48+?? How can I find out whats causing it? Maybe some unmetered air coming in? Need help here pleeeaaaassseee...

06-11-2002, 09:58 PM	#1
StreetStang37 Registered Member Join Date: Dec 2000 Location: San Jose, California USA Posts: 275	Annoying Tick when warm Last week my car began making a tick when warm. I lowered the timing to 15* and upped the fuel pressure to 40psi and it still makes the tick. It only happens between 1700-2300 rpm. The codes I've pulled are 41 and 91 (lean condition). Should I up the fuel to 44 psi or so? I drove it before and it never made the tick (two-three weeks or so) before it started making the tick? With the engine off it pulls a nice fat 11. What should I do? If it were my egr would It pull a code for it? Should I just bump up the pressure? Im pretty sure the tick is pinging, but it sounds basically like an exhaust leak. Could it be my o2's? THX guys, your help will be appreciated. __________________ 1993 Grabber Blue Mustang GT Trick Flow Heads, Street Heat intake, 3/8in spacer, E303, TFS 1.7rr & 6.75 pushrods, Holley 190lph fuel pump, 24# injectors & sample tube, SVO timing chain, Aeromotive AFPR, 180* t-stat, 2 5/8 Auto Meter mech fuel pressure gauge, K&N, March Ram Air & Pullies, 73mm C&L MAF, Edelbrock 65mm TB & EGR, 1 5/8in Equal Length Super Competition Hooker Headers, 2 1/2in H-Pipe w/hi-flow cats & Flowmaster 2 1/2in Cat-Back Exhaust, FlowTech Cut-Outs, Nitto DR's, 3.73 gears, FMS Aluminum DriveShaft, Pro 5.0 Shifter, Pro-Shift Lite, 8.5mm MSD Super Cunductor Plug Wires, PowerSlot rotors, PowerMaster 140amp Alt., LX lights, Cobra R hood w/SVO scoop, Saleen spoiler, Cobra Bumper, 3in chrome tips.

06-12-2002, 05:33 PM	#2
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	You sure your not just hearing the injectors? how about a bad throw out bearing? Exhaust leak? __________________ Remember...2nd place is 1st place for losers!

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06-12-2002, 11:14 PM	#3
StreetStang37 Registered Member Join Date: Dec 2000 Location: San Jose, California USA Posts: 275	I upped the pressure to 44#'s and the code went away. But now I was getting code 44 (right thermactor inoperative) and I read in a bunch of posts that they usually got that code and replaced the TFI and the code went away. Well, I changed the TFI since it's stock anyways and the code did go away, my low end (1000-2000rpm) seems to have improved and my idle stays at about 950 alot more. But now I heard some louder ticking/knocking and when I pulled the codes I got 91 (left HEGO sensor indicates system lean). What do I do now? bump up the fuel pressure to 48+?? How can I find out whats causing it? Maybe some unmetered air coming in? Need help here pleeeaaaassseee...