Need some urgent advise!

Andrew McGuinness · 05-31-2012, 05:57 PM

Hi everyone,

I recently purchased my first rx7 last week off a friend. It had been sitting for 6-8months unstarted, unrun. I put jump leads on it and it fired up no problem, i drove it home with no hiccups but did notice when i was almost home the cat heat light shown. The last time the car was run before i got it was in the rain where it cut out and the cat heat light appeared, the car was towed home and started the next again morning, first time. I now have the car at my house, but it will not start for me! I have recorded a small video to show what happens exactly. Sometimes the cat heat light will show with ignition on and it will try to start. Other times the light has not shown but ive heard a constant ticking from under the throttle bodies. Ive removed the spark plugs and cleaned them up, the car is getting fuel, it just doesnt seem to want to start. Any ideas?

Andy.

http://youtu.be/0HQtIonrQHg

GySgtFrank · 05-31-2012, 08:08 PM

Andrew, I'm no expert on FDs, but there are some basic things to try first. You may have already done them, if so, ignore me. Is the fuel in the tank the same fuel that has been in there the whole 6-8 months it was sitting? If so, drain the fuel and replace it with new, modern fuel blends do not last long in storage. Have you checked all your grounding points? Especially for the ECU, CPU (harness ground?), and starter. A little corrosion here will really screw things up. Check to ensure you're getting full voltage from the battery to the ECU, injectors, and coils. I believe 12.7 volts? You'll have to check the FSM on the proper voltage. Hopefully someone with experience on the FDs can better answer this.

Andrew McGuinness · 06-01-2012, 05:45 PM

Thank you for getting back to me! The fuel that is in it, is the fuel that has sat with it for 6months yes. I will replace that, I have noticed a slight fuel leak though from somewhere I cant see exactly, near the manifold downpipe. I am going to have to strip back the engine bay to find it. I will check all those ground points also. Ive never seen a car with as many! Apparently it has had a different upgraded fuel pump added to it after its last tune. Will that make a different? I think the new pump may have higher pressure.

GySgtFrank · 06-01-2012, 06:45 PM

If those suggestions don't work, it may be a leaky fuel injector. If you have fuel coming from the downpipe you have flooding issues. This is normally caused by a fuel injector that is not shutting down. You will have to pull the injector rails (there are two of them) lay out the injectors and run the pump. This will make it obvious if an injector is leaking fuel. It is a relatively common problem from what I have read on others posts. Come on FD guys jump in and help.

***TitaniumTT*** · 06-02-2012, 09:29 AM

Fuel injectors are sticking and the fuel reg or PD is leaking.... or the o-ring in the primary fuel rail.

Basically, you need to remove the upper intake mani and replace everything underneath it.... I would definately do a vac hose job while you're in there.

05-31-2012, 05:57 PM	#1
Andrew McGuinness First Time RX7 Owner Join Date: May 2012 Location: Scotland iTrader: (0) Posts: 2 Rep Power: 0	Need some urgent advise! Hi everyone, I recently purchased my first rx7 last week off a friend. It had been sitting for 6-8months unstarted, unrun. I put jump leads on it and it fired up no problem, i drove it home with no hiccups but did notice when i was almost home the cat heat light shown. The last time the car was run before i got it was in the rain where it cut out and the cat heat light appeared, the car was towed home and started the next again morning, first time. I now have the car at my house, but it will not start for me! I have recorded a small video to show what happens exactly. Sometimes the cat heat light will show with ignition on and it will try to start. Other times the light has not shown but ive heard a constant ticking from under the throttle bodies. Ive removed the spark plugs and cleaned them up, the car is getting fuel, it just doesnt seem to want to start. Any ideas? Andy. http://youtu.be/0HQtIonrQHg

06-02-2012, 09:29 AM	#5
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Fuel injectors are sticking and the fuel reg or PD is leaking.... or the o-ring in the primary fuel rail. Basically, you need to remove the upper intake mani and replace everything underneath it.... I would definately do a vac hose job while you're in there. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

05-31-2012, 08:08 PM	#2
GySgtFrank Professional Stick Poker Join Date: Feb 2011 Location: Stafford, Ks. iTrader: (0) Posts: 1,005 Rep Power: 15	Andrew, I'm no expert on FDs, but there are some basic things to try first. You may have already done them, if so, ignore me. Is the fuel in the tank the same fuel that has been in there the whole 6-8 months it was sitting? If so, drain the fuel and replace it with new, modern fuel blends do not last long in storage. Have you checked all your grounding points? Especially for the ECU, CPU (harness ground?), and starter. A little corrosion here will really screw things up. Check to ensure you're getting full voltage from the battery to the ECU, injectors, and coils. I believe 12.7 volts? You'll have to check the FSM on the proper voltage. Hopefully someone with experience on the FDs can better answer this.

06-01-2012, 05:45 PM	#3
Andrew McGuinness First Time RX7 Owner Join Date: May 2012 Location: Scotland iTrader: (0) Posts: 2 Rep Power: 0	Thank you for getting back to me! The fuel that is in it, is the fuel that has sat with it for 6months yes. I will replace that, I have noticed a slight fuel leak though from somewhere I cant see exactly, near the manifold downpipe. I am going to have to strip back the engine bay to find it. I will check all those ground points also. Ive never seen a car with as many! Apparently it has had a different upgraded fuel pump added to it after its last tune. Will that make a different? I think the new pump may have higher pressure.

06-01-2012, 06:45 PM	#4
GySgtFrank Professional Stick Poker Join Date: Feb 2011 Location: Stafford, Ks. iTrader: (0) Posts: 1,005 Rep Power: 15	If those suggestions don't work, it may be a leaky fuel injector. If you have fuel coming from the downpipe you have flooding issues. This is normally caused by a fuel injector that is not shutting down. You will have to pull the injector rails (there are two of them) lay out the injectors and run the pump. This will make it obvious if an injector is leaking fuel. It is a relatively common problem from what I have read on others posts. Come on FD guys jump in and help.