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Bought my first dsm. Need some help....

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sahmmy

10+ Year Contributor
33
0
Sep 11, 2011
Tyrone, Pennsylvania
Whats up everyone. Names Josh. Just bought my first 2g dsm. Has a 6 bolt swap. Got the car and it wasn't running. Kid told me that the ignition coils was bad, but of course that wasn't the problem. Replaced ignition coils, plugs, wires and now it starts up. Buttt the problem is when i first start it up it shuts right off as soon as i give it any throttle. After several times of trying it stays running but hesitates when i hit the throttle then revs but not very high. The block is fully built and the head only has 50 miles on it so i was told. Idles fine but wont rev to save my ass. Has anyone had ne issues like this before? Im in the process of checking the cas and timing this week. Any other things i should check while i got stuff tore apart. Any help will be greatly appreciated. Thanks
 
Does it have a maf? If not a translator maybe?

Show some pics of the engine bay and what injectors do you have?
 
Could also be that the engine is not getting the proper air and/or fuel ratios required to run properly. Which, would make sense as you say it dies and hesitates when you give it throttle. Check that the MAF is connected and functioning properly, may also want to check the injectors are clean, etc. and also check intercooler and intake piping as you may have a nasty air/boost leak somewhere. Don't forget the vacuum lines, check them all.... Certain vacuum lines left disconnected without being properly blocked off will make your car run like crap. :thumb:

Edit: 95AWD6Bolt, looks like i was posting the same time as you, +1 as that was the path i was leading towards too.
 
Has the stock maf. Was told it has the stock injectors in it. Ill be uploading some pics as soon as im allowed LOL. Is there any way to tell what size injectors are in it? Not really a fuel system kind of guy.

Did a boost check on it and didn't find any leaks any where. Also did a compression check on the pistons and they came back 175,177,173,178. As for the maf ill be checking it tomorrow morning before i go to work so ill be keeping u guys updated.
 
Any aftermarket gauges or logging devices? Any extra information is helpful.

Based on what you posted, I would start looking at the CAS and plug wiring order. The guy just put in a new 6 bolt in a 2g and sold it, maybe he just didn't get it running right or something. Check out my post about installing a 1g cas in a 2g car here. You may need to swap the order of the plug wires. What color is the CAS?
 
From what I was told the kid i bought this from drove it home and the cam gear broke and bents a few valves. Put a new head on it drove it less than 100 miles and it just shut off on him. He told me the ignition coils were to the blame but that wasnt the issue. Has a built bottom end stock everything else except for a fmic. Has the stock ecu with autometer boost gauge. As far as I know has the stock injectors but haven't gotten to them yet.
 
Well it looks like you have some investigating to do. Let me see if I can give you some places to start looking

1) I think you said its a 95? See if you can find out if its the stock 95 ecu, or one from a later year. 95-96 ecu's had a cas on the driver's side of the motor. late 96 and forward had one on the passenger side so the firing order may be reversed.

2) Check base timing if you have a 1g adjustable CAS. It should be 5 BTDC.

3) Check the timing belt alignment. Make sure all the marks line up according to here

4) Check spark/fuel/compression
 
When I got my car, it was doing this too. Started amazing, and idled great. But when I gave it throttle, it would only make it to just under 3k RPMs and it was tough getting there. I looked and looked, and finally found that it was just the MAF being unplugged.
 
Well it looks like you have some investigating to do. Let me see if I can give you some places to start looking

1) I think you said its a 95? See if you can find out if its the stock 95 ecu, or one from a later year. 95-96 ecu's had a cas on the driver's side of the motor. late 96 and forward had one on the passenger side so the firing order may be reversed.

2) Check base timing if you have a 1g adjustable CAS. It should be 5 BTDC.

3) Check the timing belt alignment. Make sure all the marks line up according to here

4) Check spark/fuel/compression


+2 on this.

But, Before you do all this work.

1. Check your Air Filter to see if is clean.
2. Check the Maf (Unplug it and Plug it back to make sure the plug is making good
good contact.
3. Check your TPS, It might be off.

This are the most easy parts to start with.
If this doesn't fix your problem, Then, Proceed with all that (TuRBoTaLooN) said.
 
Thanks for all the input guys. Have work today but tomorrow ill be wrenching at it. Took a look at a few things this morning. The bushing for the left motor mount is completely blown out so ill be replacing that, found a few plugs near the fire wall that aren't connected to anything at all. Ill try to upload some pics of them tomorrow. Ill be checking the maf and tps tomorrow morning. Also it is the stock 95 ecu.
 
Yes the cel is on. A friend of mine is bringing down a scanner tomorrow or sunday so ill be able to see what this is from. Im Gonna be checking the timing and the cas tomorrow.
 
Only, since I Havehad the problem before on onther cars, but have you checked your plugs after installing them? I installed a MSD, not sure if your coil is stock or not sorry, on my honda and had an issue with my plugs detonating in the cylinders all the time, at least till I started paying big for double platinum NGKs. Not sure if this is even a problem with these cars or not but just a thought.
 
Well was sick as hell over the weekend so didn't have time to work on it. Although this morning i was able to check the timing and all the timing marks line up perfectly. Picked up a new valve cover gasket set so tomorrow morning ill be taking a look at the cas. Besides the typical crack or bend is there any other way to tell if the cas is bad?
 
I would say make sure its wired up right. Find out what ecu is in there, then make sure they swapped the correct harness for the engine. If I remember right there are pins on a 2g that need to be swapped to work on a 1g. I would start there as it sounds like your tps is not reading properly with the air flow the maf is reading.

Sent from my T-Mobile G2 using Tapatalk
 
Didn't get to check the cel yet had the flu over the weekend and couldn't do ne work. The car idles perfect but as soon as I give it any throttle it bogs down then it revs but after it warms up it will rev but only to 1500-2000. The swap has been in it for a couple years and was running good and it just died on the previous owner. The timing lines up perfect . Put new plugs wires and ignition coils on it. Checked the wiring for the cas and it is wired correctly.

Check the ecu it is the stock ecu. Im at work now but tomorrow morning im gonna check the capacitors. I also checked the fuel pressure before the fuel filter and after the filter and it also checked out good.
 
I have a 6 bolt in my 97.. From experience, I'd look at the TPS or MAF. Any issues in the CAS circuit usually keeps the vehicle from running at all. New to this forum stuff hope I can help
 
I had the same problem, turned out to be the ecu. If you can fined a different 95-96 ecu to try that would be great. the little bit of play in the cas is on everyone ive seen so i would say its fine. Also try to test the map sensor.
 
Well decided im gonna sell the ecmlink v3 chip the was never installed and came with my car and just order me a new maf and tps since they are more than likely the original ones that came on the car. Waiting on my new motor mount to get here hopefully ill get it today or tomorrow. Trying to find someone close that has an ecu that i can use to test but doesn't seem like i can find one. Im gonna take it out tomorrow and check it out.
 
Well decided im gonna sell the ecmlink v3 chip the was never installed and came with my car and just order me a new maf and tps since they are more than likely the original ones that came on the car. Waiting on my new motor mount to get here hopefully ill get it today or tomorrow. Trying to find someone close that has an ecu that i can use to test but doesn't seem like i can find one. Im gonna take it out tomorrow and check it out.

I wish I had link, I would never sell it LOL, but sometimes ya gotta do what ya gotta do good lick with the car hope you get it running right had mine about 2 months before I actually got to drive it LOL.
 
In the spring when I build the motor im gonna go with an aem ems so don't really need the link . Thanks im gonna need some luck LOL. If ## interested in the link shoot me a msg LOL
 
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