1990 FWD runs like crap barely moves

[jdarnold1990]

Car idles fine a little surge but im running a little rich. when i put it in first it goes into gear fine but when i let off the clutch it will bog down to 500rpms and ill have full throttle and the car wont move or will barely move. is there anything electricle that can cause this if so what? and if not what could cause it. I HAVE ALREADY PERFORMED A BLT AND CHECKED BASE TIMING AND WITH A TIMING LIGHT FIFTY TIMES AT LEAST AND NO BOOST LEAKS

 

[xxNocturnalxx]

Do you think those 550cc injectors might be a little big with no tuning? Check to see if you're getting spark on all 4? I'm assuming you don't have a CEL on? Coolant temp sensor possibly?

 

[pauleyman]

You have 550s and no way to adjust at all? Sorry, no bueno. Pull them out.

 

[jdarnold1990]

You have 550s and no way to adjust at all? Sorry, no bueno. Pull them out.

no way to tune them but i do have a 2g maf which should almost balance it a/f out but it should still run and drive at the least and have enough power to test drive down the road.

Do you think those 550cc injectors might be a little big with no tuning? Check to see if you're getting spark on all 4? I'm assuming you don't have a CEL on? Coolant temp sensor possibly?

i am getting good spark on all four just replaced power transistor and the coil pack cel was on but went off when i changed the power transistor

 

[Beaubo]

Can you rev the engine when out of gear?

 

[jdarnold1990]

Can you rev the engine when out of gear?

yes. but its kinda slow to rev up. I thought it was a boost leak did several boost leak test the only one was at the injectors and i fixed it.

 

[mosul210]

Any recent changes to the setup prior to this condition? For example new injectors, MAF, etc..?

 

[jdarnold1990]

Any recent changes to the setup prior to this condition? For example new injectors, MAF, etc..?

bought the car not running and it was bone stock....still had cruise control and a/c.
but had a GVR4 maf that was completely hacked out, and no manifold. i got the car took all the emissions bs off egr valve and what not (used the welded block off plate and looped the vacuum lines.) then i proceeded to to replace the parts maf, manifold, spark plugs, oil change, injectors, took the a/c out, non cruise cable, eprom ecu, ect. really just the basic stuff. but since I had the car it never really ran right... I have never got to drive it edit: did a compression test it was within 150-155 on all 4

 

[mosul210]

Can you rev the engine when out of gear?

Also when in gear and the car is not accelerating as it should are the RPMs going up? or do the RMPs not want to increase?

 

[Beaubo]

You might check your coil pack and see if the wires are in the correct order. Test the coil pack to see if its working. Also what are your plugs gapped to?

 

[jdarnold1990]

wires and plugs good gapped to .28 and when in gear rpms sit at 500 with throttle pedal pushed all the way down

 

[MY1GDSM]

You have an Eprom ECU why not just adjust for things properly... ?

Just because lots of people use to run that 550cc/ 2g maf combo back when. Doesn't mean things will work out to a perfect afr or run right for you... .

What's your base fuel pressure at? Does the Car have a stock chip in? If so is it for a auto or 5spd? Is it a 90 Eprom Ecu? Have a way to get a log... ?

 

[jdarnold1990]

You have an Eprom ECU why not just adjust for things properly... ?

Just because lots of people use to run that 550cc/ 2g maf combo back when. Doesn't mean things will work out to a perfect afr or run right for you... .

What's your base fuel pressure at? Does the Car have a stock chip in? If so is it for a auto or 5spd? Is it a 90 Eprom Ecu? Have a way to get a log... ?

its 90 socket-ed eprom stock chip no way to log not sure of fuel pressure 5 speed no way to log this car is burning a hole in my pocket. but even if the afr isnt perfect the car should be able to pull itself.... which it wont. and ecm link is on my 2 do list or at least a safc or a tuned chip. but i dont want to spend 500 for the ecm if all its gonna tell me is i need to put another grand into the car thats why i want to get it running semi decent so i know that there isnt anything to ridiculous thats wrong it. and im looking ideas of whats can cause this ie: wires that the guy i got it from could have spliced and crossed or the fact that my timing is dead on but cas has been flipped 180 and turned all the way up so i cant adjust anymore but that for some reason seems a little funny to me like if its dead on i should still be able to adjust it some either way.

 

[MY1GDSM]

There's a few links on how to build a cheap logging cable in this how-log-your-1g-tuner-pro-rt

But before anything you need to go over all this Wheather you are asking for advice or getting yor car going all the things in that thread need to be taken care of... .

 

[pauleyman]

Cas asjustd all the way up? Check your mechanical timing