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-   -   Sprint RE car wont start (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/sprint-re-car-wont-start-1103984/)

Jesus Eunos Vega 08-11-16 04:22 AM

Sprint RE car wont start
 
Sup ya, so today i finished setting up ,u wiring and ecu, new spark plugs, map sensor connected, fuel pump wired, LS coils, ect. i updated my ecu firmware, loaded the S5 base map, ignition settings to direct spark for the LS coils, and car wont start :( doesnt even sound like it wants to start. i pulled the spark plugs to see if it was flooded, and no. i used a simple light tester on the spark plug cables and there is power coming thru. i tried turning the CAS and nothing, so i tired starting fluid thinking maybe theres no fuel. AND nothing!! is there something im missing?

SPECS.
Jspec S5 swap, knight sports hybrid turbo, greeddy top mount, uknown if ported or not, stock injectors, omp blocked off, emissions blocked off, LS coil packs.

Seamoan 08-11-16 05:03 AM

Is it cranking

misterstyx69 08-11-16 07:34 AM

..try the Haltech section for any info?

FührerTüner 08-11-16 08:06 AM

Post map.

Did you set base timing?

I'd suggest downloading the manual and using the Quick Start Process.

Jesus Eunos Vega 08-11-16 02:02 PM

yes it cranks, on my laptop it shows rpm go to 280 when cranking, tps is showing, vacuum pressure too. i didnt know we had a haltech section, i will go check that out. and what d you mean base timing?

Jesus Eunos Vega 08-11-16 02:18 PM

also there are 2 ground wires, black and black with white, one goes to the chassis and the other to the battery, as of now they both are grounded to the chassis, any reason why one has to go to the battery?

FührerTüner 08-11-16 02:57 PM

You need to set base timing bro. Read the manual.

Lock timing at -5* BTDC, Hook up a timing light to L1, line the pulley mark up.

Jesus Eunos Vega 08-11-16 04:02 PM

oh thats right! im looking at my main pulley and theres to notches on it, how do i know ich is -5 or -20? getting a timing light is going to be hard, ill see of an auto parts store has one.

Jesus Eunos Vega 08-11-16 04:12 PM

i have the manual too, and i been going thru it. what do you mean by the quick start process?

Jesus Eunos Vega 08-11-16 04:19 PM

1 Attachment(s)
here is the base tune im using.

Jesus Eunos Vega 08-11-16 08:11 PM

checked the cas and its aligned right, just need the timing light to get it spot on, also checked my injectors and they are spot on.

FührerTüner 08-12-16 07:23 AM


Originally Posted by Jesus Eunos Vega (Post 12095009)
oh thats right! im looking at my main pulley and theres to notches on it, how do i know ich is -5 or -20? getting a timing light is going to be hard, ill see of an auto parts store has one.

OEM Pulley? May just be hard to see. Try cleaning it all around with a wire brush.


Originally Posted by Jesus Eunos Vega (Post 12095012)
i have the manual too, and i been going thru it. what do you mean by the quick start process?

Download this http://www.haltech.com/wp-content/up...se_website.pdf


Originally Posted by Jesus Eunos Vega (Post 12095013)
here is the base tune im using.

I not an expert, but i dont see anything that should prevent the car from starting


Originally Posted by Jesus Eunos Vega (Post 12095100)
checked the cas and its aligned right, just need the timing light to get it spot on, also checked my injectors and they are spot on.

Yeah check timing and line it up. Make sure the engine isnt flooded as well. What the history on this engine? Fresh rebuild?

Jesus Eunos Vega 08-12-16 01:42 PM

yeah stock pulley, i checked it out and i got it adjusted right. im thinking i connected the injection order wrong cause it kind of floods when i try to start it, motor is in unknown condition.. but when i deflood it compression sounds loud and constant

satch 08-12-16 01:48 PM

You can use a continuity test to verify you have the injector clip connected to the correct injector.

Jesus Eunos Vega 08-13-16 11:45 PM

Ok so i found out i have no spark. I connect all the wires to spark plus amd sat all 4 one by one on the manifold, nothing. My ls coils are brand new. So.i tried thpse simple tester pens. And only 2 has power but very weak. I had to look.in the pen to see the light super dimmed. Those 2 are my leading cables right

satch 08-13-16 11:53 PM

The B/Y wires to the coils power the coils w/key to on, so check this aspect. The coils need to be bolted cleanly to the fender to be grounded, otherwise they don't work. The Green/Yellow wire at the lead coil is the trigger wire. W/key to on the voltage alternates between two values (0 volts and 5 volts) as the main pulley is rotated by hand (rotating the alternator pulley helps to rotate the main pulley).

Jesus Eunos Vega 08-14-16 12:08 AM


Originally Posted by satch (Post 12095817)
The B/Y wires to the coils power the coils w/key to on, so check this aspect. The coils need to be bolted cleanly to the fender to be grounded, otherwise they don't work. The Green/Yellow wire at the lead coil is the trigger wire. W/key to on the voltage alternates between two values (0 volts and 5 volts) as the main pulley is rotated by hand (rotating the alternator pulley helps to rotate the main pulley).

i thought LS coils have the ground in a wire?

satch 08-14-16 12:32 AM


Originally Posted by Jesus Eunos Vega (Post 12095822)
i thought LS coils have the ground in a wire?


Didn't catch the fact that you had aftermarket items. You need to verify that the ECU is trying to trigger the coils in addition to rechecking the coil wiring.

Jesus Eunos Vega 08-14-16 02:04 AM


Originally Posted by satch (Post 12095829)
Didn't catch the fact that you had aftermarket items. You need to verify that the ECU is trying to trigger the coils in addition to rechecking the coil wiring.

wiring should to the coils should b perfect, i bought them from angel motorsports, who he made for a rew swapped fc, they got the car running but he ended up going a different route, on my part all i did was run the wires to the battery and ground. can it be a tuning problem?

satch 08-14-16 08:43 AM

Do you know if the injectors are firing?

Jesus Eunos Vega 08-14-16 04:03 PM


Originally Posted by satch (Post 12095874)
Do you know if the injectors are firing?

yeah, i turned the cas by hand and the injectors click, its weird, i have rpm reading fine when i crank, but no power to the coils, im thinking i have a bad ground? this harness was used in a rew swapped fc just fine, the shop i got it from said the customer decided on a different route

FührerTüner 08-14-16 05:37 PM

Now that I'm thinking about it, check wiring to the coils. If you used the wire diagram on this forum, it's incorrect. Double check it.

FührerTüner 08-14-16 05:41 PM

https://www.rx7club.com/haltech-foru...ideas-1093236/
https://cimg8.ibsrv.net/gimg/www.rx7...fdeea5e87d.png


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