DEK swap: Starting issue
#1
DEK swap: Starting issue
Well if you havent heard from my other thread, a couple of weeks ago I did a DEK swap in my 98 and it turned out the junk yard sent me a bad motor, it starts up just fine everytime but it had a horrible knock to it.
So last week, they sent me a second one. I was able to get the broken one out and the new one in but now it doesnt start. At first it just cranks and cranks but it was missing either spark or fuel, I noticed on my safc that I wasnt getting a rpm signal when I was cranking the motor which I founded was my Crank REF was not plugged in all the way. I fixed that and it started for a second and died immediately afterwards. It hasnt started up again ever since, a couple of times it came close but no luck.
I checked both spark and fuel which were good. I re-grounded the IM grounds to the timing cover. I can hear the ignition thru the exhaust like it wants to start, I'm changing out the starter since it seems to crank slower than before plus my starter has over 120k miles on it. I also noticed that my injectors was soaked with fuel since I have 500cc so I lowered the FP (even down to 18psi) but with no luck.
Still have to look into, I dont have a ground to the engine block since my battery was relocated, I will get that the next chance I get to work on it. I read that this may affect the starting problem but I ran and started the previous motor (DE & DEK) without that and it was fine.
Does anyone have anymore ideas???
So last week, they sent me a second one. I was able to get the broken one out and the new one in but now it doesnt start. At first it just cranks and cranks but it was missing either spark or fuel, I noticed on my safc that I wasnt getting a rpm signal when I was cranking the motor which I founded was my Crank REF was not plugged in all the way. I fixed that and it started for a second and died immediately afterwards. It hasnt started up again ever since, a couple of times it came close but no luck.
I checked both spark and fuel which were good. I re-grounded the IM grounds to the timing cover. I can hear the ignition thru the exhaust like it wants to start, I'm changing out the starter since it seems to crank slower than before plus my starter has over 120k miles on it. I also noticed that my injectors was soaked with fuel since I have 500cc so I lowered the FP (even down to 18psi) but with no luck.
Still have to look into, I dont have a ground to the engine block since my battery was relocated, I will get that the next chance I get to work on it. I read that this may affect the starting problem but I ran and started the previous motor (DE & DEK) without that and it was fine.
Does anyone have anymore ideas???
#3
Didn't think you could start with those huge injectors?
IACV hooked up? All the crank and cam sensors hooked up?(doublecheck) Press the accelerator to the floor and try to crank it.
Also check for CEL.,
IACV hooked up? All the crank and cam sensors hooked up?(doublecheck) Press the accelerator to the floor and try to crank it.
Also check for CEL.,
#4
Originally Posted by Kevlo911
Didn't think you could start with those huge injectors?
IACV hooked up? All the crank and cam sensors hooked up?(doublecheck) Press the accelerator to the floor and try to crank it.
Also check for CEL.,
IACV hooked up? All the crank and cam sensors hooked up?(doublecheck) Press the accelerator to the floor and try to crank it.
Also check for CEL.,
#6
I relocated the 2 grounds from the LIM to the timing cover and I still need to get a ground to the block from the chasis. I dont think the engine itself is getting a good ground, I do have spark tho and the car start/ran before without an actual ground wire to the chasis which makes me uncertain about the grounding issue.
I also dont know how strong is the spark but I do get one in all cyclinders. Its raining right now too so I cant quite work on it .
I also dont know how strong is the spark but I do get one in all cyclinders. Its raining right now too so I cant quite work on it .
#9
Well thanx for all the suggestions, I will try those out Monday when I get a chance to work on it. I really hope that its a ground problem. Its just weird how I can get a broken motor to start right up and a good motor (as far as I know) to not start. Its quit frustrating, I guess you gotta pay to play.
#10
You sure all 6 cylinders are getting enough fuel? I swapped in a DE-K recently into a local car and the motor wouldn't start. Took out the injectors to have them ultrasonically cleaned and turns out they were dirty beyond repair. Maybe you have the same issue.
#12
Update!!! I got her to start and stay on. I could hear a loud vacuum leak which I believe is from the IM mating surface, also my boost gauge isnt showing much vacuum at all. I am running dirt rich, my wideband was showing 9.5s at first then went up to 10.5 at idle, this was running on only 25psi of fuel. The motor is good, thankfully. It idles is around 900ish to 1150, I turned the car off after a little bit but it didnt start again. So I guess I'm gonna tear the IM down and seal it up with some silicone, I believe thats my main problem right now. The good thing is its not knocking, that took away a lot of stress I will keep everyone updated.
Thanks again for everyone's help.
Thanks again for everyone's help.
#16
I did used the 5th gen gasket, the outta bolts of the 4th gen lower dont line up with the VI. I drilled the VI to fit the outta bolts and still don't line up so I will try to make it fit again but if not I may have to revert to the ghetto way even though I dont want to... I try the 4th gen gasket and that didnt work cuz of the front two bolts being too short.
#17
okay shes up and running now. I have no troubles with the start up issue, she idles fine but her AF is @ 16.6-19ish and when crusing is 14.7 and under WOT is @ 9.6. I dont think the idle AF hurts the car but it use to idle @14.7 so I figure imay have a small vacuum leak somewhere.
The DEK is 100x smoother than the DE and torquier. I dont have the VI activating and she spools faster than before, I'm very happy with the DEK and cant wait to get all the kinks worked out.
The DEK is 100x smoother than the DE and torquier. I dont have the VI activating and she spools faster than before, I'm very happy with the DEK and cant wait to get all the kinks worked out.
#19
mmm thats 9.5 with boost ( only saw like 2.5psi). My fp is near stock so thats is probably why its so rich plus not as much boost. The tuning will be done later once everything else is worked out. I still gotta install the J&S.
#20
Oh ok....Well I didnt know that you had the boost hooked up right away. I thought you were going no boost for a little while to make sure the motor was alright. It still is a bit rich.
-matt
-matt
#21
lol yea i thought about that but since i didnt have a extra ypipe to keep it na and my exhaust wouldnt have lined up, I was forced to stay boosted. The thing was I got it started today around 3 and drove around town for a bit but i never went full throttle, maybe 75% and never went above 5500rpm. I caught a glimpse of the 9.5 so I knew I was at least running that at some point.
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