starting/running problems/please help

[Crazy99GS]

hello
I have browsed and browsed and posted on another site that seems to get very little traffic. I want to start off by saying thanks in advance for any time spared to help me

the car is a 99 eclipse GS with the 420a motor. I bought it for my wife , we both always wanted one just cause it looks amazing, even if the 420 is a dog!

Slowly I been doing little things to it, trying to keep it looking stock but sleeper mods.

With that said , last year I bought a msd coil pack with granatelli wires. Pack lasted less than a year. started off stuttering on cold starts then just refused to run, would back fire under any load. Replaced with a stock one, no problems.

So my wife was describing similar symptoms again. So I ordered a granatelli one from modern performance. Before it arrived, I was changing out the brakes and rims for new ones and stock winter wheels/tires. I was able to get the car to start and run, no problem. second time, wouldnt start! I checked everything under the hood. Would not start. Also if it helps, the manga flow exhaust tip is never ever dirty. I have a similar set up on my car and Im always cleaning mine and hers never has deposits on it, just water spots. Well she brought the car to me , the tip was covered in black soot. (misfire, rich?)
to keep this readable , ill shorten this up. I spend 3 days on this, this is what i did:

I replaced all 3 relays , fp, asd, etc with ones from a junkyard
I replaced the crank position sensor with a brand new one
I replaced the cam sensor with a used one known to work
I did compression tests, 150+ across all 4
I did a fuel pressure test, around 48-50psi primed not running
pulled valve cover, inspected for damage, cranked it over, nothing broke
I pulled all 4 plugs and cranked, i can see puffs of gas from all 4
I pulled the timing cover window, marks are dead on

using PLX Kiwi and torque, engine codes show bad coil, p0351 and 352

So the new coil came in, popped it on, and she started, but running really rough
When its running , the idle is around 1000 and any blip of the throttle causes the rpm to rise and hang there and come down slowly
Try to get it more gas, it starts to misfire

I can start it this way for about 3 times, then its back to just cranking, no start

Last thing I can think of is a new ECU but at 120$ from a junkyard with no refunds, am I missing anything??

cleared the codes

got it running like crap again, only ran 3 cycles then back to no starts

codes this time where
c11f8
c1203
p1800
and a coolant temperature senor high input
you dont think a bad coolant sensor can do this?

 

[210carlos]

Check vacuum lines and then well might sound funny but the wires going to the coil pack It could also be the egr valve

 

[Crazy99GS]

So the egr could have melted wires? I checked , still good

So I wonder if I could return the crank sensor as both new and old still allow spark and fuel.

I'm at my wits end. Last resort is a ecu but not familiar with how to test for a bad ecu.

I'm willing to test with a meter just need to know what I'm looking for.

Thank you
Bob

 

[dsmspickdad]

Check the wiring harness by the throttle body. You need to check the wires leading to the coil pack. If the wires look good the still check them with voltage meter. The 420a was known to burn the wires to the coil. To check the ECU plug in a OBD2 port and check if the see if they are communicating to each other. But you stated that the you have pulled the codes store in memory. Also check the fuel pressure regulator. And yes bad coolant temp would cause problems, especially after warm up.

 

[Crazy99GS]

So went over the wires again. Nothing seems wrong.
I did everything I could. The coolant sensor , the larger one, turns the fan on as soo. As its unplugged. There is a tiny metal tab below that , has a wire going to it, was loose. I cleaned that up and re attached.

Car started again. Ran smooth at 1000 idle and acts very strange when you give it gas. The revs climb and come down slowly. Turned it off , now it just cranks again

If it helps I'll get a video in the morning

 

[NathanRoberts]

It could be a rich misfire, have you checked the Injectors to see if they're leaking?

 

[Crazy99GS]

How do i get access to injectors in order to pull one out? The whole intake manifold has to come off? And those bolts look pretty hard to reach. I'll try to get access to them.

 

[dubysnax]

egr valve will cause major issues. gunk the intake which will make it hard to start since it gets no air. imo just order a block off plate set from ebay and bolt on or try replacing the egr valve or selonoid. or both. that was my first problem.

and yes. you will have to pull the manifold. atleast the upper. but is easier to get the whole thing off. best way is to pull your battery and tray to gain better access.

 

[starfish]

It sounds like electrical,but for $10 you could try sea foam.

 

[Crazy99GS]

Eclipse troubleshooting - YouTube

Maybe is the tps? No ses light again it came on for tps when I unplugged it while it was running to test if it would throw a light.

After it ran it would not start again. Cranked on it and it would catch if I put the pedal to the floor but then die out. Cold starts seem to be only time she runs

 

[210carlos]

Check the intake manifold gaskets to do so get some throttle body cleaner and spray it where the manifold meets the head also spray by the injectors but do it with the car on if you spray it then it sounds like it wants to die then the intake manifold gasket is bad it will keep rmps high too much air rushing in

What are the trouble codes?

 

[Crazy99GS]

I cleaned the entire throttle body till it looked new. Right down to removing butterfly plate and all sensors.

At this time no codes

Car only idles at 1000 rpm. Rich exhaust smoke. Misfire. Can't tell what cylinder. I can't see the ecu being a problem unless its common or could cause car to run like crap.

I tried everything I can think of. Junkyards don't have 98-99 eclipses to swap out. And all the avengers have 2.5l

I let it run to full operating temp but ended up with a hot motor to work on and garage full of smoky exhaust

I sprayed and I used a stethoscope on each injector.

I wish I could tell what cylinder was misfiring. I'll pull plugs again.
It's a shame there is ses light for my car running this way.

Also when I'm at te junkyard what cars can I get injectors from?

 

[bloodlinebkx]

hello
I have browsed and browsed and posted on another site that seems to get very little traffic. I want to start off by saying thanks in advance for any time spared to help me

the car is a 99 eclipse GS with the 420a motor. I bought it for my wife , we both always wanted one just cause it looks amazing, even if the 420 is a dog!

Slowly I been doing little things to it, trying to keep it looking stock but sleeper mods.

With that said , last year I bought a msd coil pack with granatelli wires. Pack lasted less than a year. started off stuttering on cold starts then just refused to run, would back fire under any load. Replaced with a stock one, no problems.

So my wife was describing similar symptoms again. So I ordered a granatelli one from modern performance. Before it arrived, I was changing out the brakes and rims for new ones and stock winter wheels/tires. I was able to get the car to start and run, no problem. second time, wouldnt start! I checked everything under the hood. Would not start. Also if it helps, the manga flow exhaust tip is never ever dirty. I have a similar set up on my car and Im always cleaning mine and hers never has deposits on it, just water spots. Well she brought the car to me , the tip was covered in black soot. (misfire, rich?)
to keep this readable , ill shorten this up. I spend 3 days on this, this is what i did:

I replaced all 3 relays , fp, asd, etc with ones from a junkyard
I replaced the crank position sensor with a brand new one
I replaced the cam sensor with a used one known to work
I did compression tests, 150+ across all 4
I did a fuel pressure test, around 48-50psi primed not running
pulled valve cover, inspected for damage, cranked it over, nothing broke
I pulled all 4 plugs and cranked, i can see puffs of gas from all 4
I pulled the timing cover window, marks are dead on

using PLX Kiwi and torque, engine codes show bad coil, p0351 and 352

So the new coil came in, popped it on, and she started, but running really rough
When its running , the idle is around 1000 and any blip of the throttle causes the rpm to rise and hang there and come down slowly
Try to get it more gas, it starts to misfire

I can start it this way for about 3 times, then its back to just cranking, no start

Last thing I can think of is a new ECU but at 120$ from a junkyard with no refunds, am I missing anything??

cleared the codes

got it running like crap again, only ran 3 cycles then back to no starts

codes this time where
c11f8
c1203
p1800
and a coolant temperature senor high input
you dont think a bad coolant sensor can do this?

I have a 98 ecu, (md346676) great condition for sale.

 

[210carlos]

If you have no codes then it's not an electrical problem and what i meant was spray throttle body cleaner around the intake manifold where it meets the head Try a 2.0 neon

You most possibly have a vacuum leak

 

[Crazy99GS]

I covered all the lines I spend 8hrs a day on this since Sunday. I can get it to run but it runs like crap like a misfire / unburnt fuel coming out muffler.

Would a bad ecu act like this? I'm at the end of my rope


Ok fuel pressure regulator came up when talking to other people. It's located by the fuel tank. I'll check that in the morning

I already used a fuel pressure tester. Key on pump primed it's 49psi then settles to 45-46 With car running the needle rapidly moves from 45-50 ish

I would like to grab some injectors. You guys helped a lot so far, and I need to ask , any neon with a 2.0 has compatable injectors ? Same lbs/hr and same connector? I have access to 30 neons at the yard all years

http://ww2.justanswer.com/uploads/maddogtech/2009-09-16_022745_fpr.jpg

On the top right of #10 I removed that line and gas came out along with a some air gurgling I don't know if gas should be in that line or if that's my problem I was told to look for a vacuum line. That line goes back into tank. I don't think I have pressure issue. I think the car is commanding a rich condition and flooding the motor

That's all for today. I spent all week on this. I'll start looking for another 99

 

[starfish]

It may be a long shot ,but did you check your tank for water?Last year I bought $30 worth of premium WATER!I didn't know it at first.I was getting multipal misfiring and most of the same codes.I bought new wires,plugs, ECU,swapped out sensors.their inssurance ended up paying for everything,but I spent 2 weeks jerking around wasting time with all that crap.I never though of water in the tank because the car would start up and idle with no problem,but as soon as you hit the gas it would sputter and misfire.I still dont understand how it ran on 10 gallons of water.

 

[210carlos]

Well if your car is running rich the it might be the 02 sensor it tells the computer how much gas to pump in

 

[starfish]

maybe change fuel filter in tank and under car.

 

[thekidismosdope]

i had the same problem and was told by a friend to clean the camshaft positioning sensor because oil gets in them and it did so i cleaned it and it fix the problem for me at first it didnt but that was because i forgot to disconnect the battery as soon as i remembered i disconnected it for about 20 min and the problem went away hope this helps