Im helping a buddy with his car and I need some info from you guys. The car is a 40k PFsupercars rebuilt. It has good compression, rats nest lines all replaced, it has fuel, and spark. Car will still not start. The only thing i can think of is a bad crank sensor.

-Danny-

 

You might need to be a little more specific than that.

Without knowing a lot more about what's going on, I've heard of many people trying to "push start" their rx7, since sometimes it sucks to get them started after repeated flooding.

 

It could be tons of things, try searching, I just fixed my no-start problem (bad circuit relay) searching through different topics, there's overwhelming and tons of very recent threads on every possible test and solution

 

Does the car crank? What other mods does it have?

Is this for Duane's car? I'm from Va too

 

I'd check your grounds as well, you may have missed one doing all that work on the block.

 

yeah its duanes car.

This car was running perfect and then out of no where it died. I cranks right now and it sounds like it almost wants to start, but then it floods. This Im gonna check next is the map and crank sensors. Im leaning towards a bad map sensor.

 

You might also want to check if the coil packs are wired backwards, like the front and rear coil packs. I got them mixed up once and I had a really hard time starting. Sometimes it felt like it would start, but it wouldn't.

 

Well that pretty much impossible since the owner said he drove it up and down the street and then it shut off and it would not start. All he troubleshoot was the injectors and those are fine.

 

got to be some sort of sensor issue,
back to basics

air+fuel+spark=start.

 

air....check
fuel...got it
spark....yup

I haven't check each individual injector or the CAS yet. Those are next.

 

i'm betting it has lower compression than you think. do a compression test on it and get some hard figures.

sounds like it's fuel fouled if you are in fact getting all of the above. why is it fuel fouling? because it possibly has a tossed seal, if it happened while he was driving.

 

it is folding rather quick. the motor sounds like it has good compression. Ill go ahead an pull a comp test tomorrow to cancel that out. I really appreciate all the help.

 

i never go officially off how an engine sounds during cranking, i have had many cars with a small chip in the seal that had 60/60/90 compression on a rotor face for example that were a pita to start yet sounded fine during cranking.

 

i would pull the plugs see if its flooded. if the car has a smaller battery it makes it alot harder to start also