VR-4: No Spark + No Fuel = No Start

[Chim55117]

Last night I was driving the VR-4 near the car dealership strip in my local area, and it suddenly lost both fuel and spark and came to a stop. I tried starting it, and it restarted, but roughly, and then it died and won't start now. If you crank the key, you can hear the starter turning over, but there is no spark or fuel. I had the car towed home, and it's sitting in my driveway. At this point I have no idea what it could be, I checked my MPI fuse and relay and they are good. Does anyone have any ideas? Thanks in advance!

[Gravy]

ECU?

[blackawdtsi]

CAS

[Chim55117]

ECU?

I pulled it today and it looks fine, no visible signs of acid, and my older brother who owned the car prior noted that it was rebuilt about 1 year ago.

[Gravy]

If i'm not mistaken, the the CAS will still let the fuel pump come on?

[blackawdtsi]

Might also be TPS

[4g63tcrazy]

TPS has nothing to do with having spark or fuel. The CAS would cause no spark. Fuel would be controlled by the relay. How exactly did you check the relay? Can you hear the ECU turning on? Power transistor connector plugged in and tight?

[twack]

t to be simple minded but did you blow a coupler off?

[1QUICK4]

t to be simple minded but did you blow a coupler off?

How would that cause no fuel or spark?

You are sure that you have both no spark and no fuel? It is wierd to loose both. Did you try swapping an ECU?



How is your timing belt? If it broke you will have no Cas input and it could've taken out your crank sensor

[aaronspeed]

CAS also controls the fuel pump. The pump gets a signal from the CAS to turn on and off. Does the VR4 have the bypass harness on the firewall like the 1g to test the pump. If the pump works then I would loosen the CAS and rotate it left and right and hear to see if the fuel pump cycles. If you don't hear the pump then borrow a CAS to test or use a Multi-Meter and test the CAS like listed in the repair manual.