Hard starting..

Topic: Hard starting.. (Read 4198 times) previous topic - next topic

Hard starting..

Reply #15 – November 03, 2012, 06:30:02 PM

if you were 100 miles closer, I'd help you out. It's a bit of a drive at 2.5 hours though. These things are typically easy to figure out after you have some experience with the engines, but you also need some tools (gauges, multimeters, etc) to make testing easy.

Hard starting..

Reply #16 – November 03, 2012, 06:31:38 PM

Quote from: EricCoolCats;401890

Also check the fuel pressure...could be a leaking FPR or bad pump...

He claims the car runs PERFECTLY. And according to him no CEL. But still should check codes. My gut feeling is this car has a bad TPS. But experience tells me he is not getting injector pulse at CRANK. This is normally a TPS ISSUE. But without data from him we are chasing BALLOONS!!!

Hard starting..

Reply #17 – November 03, 2012, 08:36:18 PM

I put my money on a tps too.....

Hard starting..

Reply #18 – November 03, 2012, 08:37:45 PM

if it started and stalled, I would say temp sensor...

Hard starting..

Reply #19 – November 03, 2012, 08:49:43 PM

thanx guys yea its weird no cel and it runs ok...im driving it 70 miles a day..im gonna replace the tps and iac on monday...i have every tool needed to work on car..ive been working on cars for over 30 yrs...i just hate efi im more of a carb guy lmao....all my past fox body cars have been carbed lol....+++++i found a complete 88 5.0 mustang motor for 250.00... can you say time to build a performance motor lmao....

Hard starting..

Reply #20 – November 03, 2012, 10:49:40 PM

Carbs!!!!! Do they actually still make them?????

Hard starting..

Reply #21 – November 04, 2012, 01:19:57 AM

Lol tom yes they do...im thinkin of carbing my bird lol....

Hard starting..

Reply #22 – November 04, 2012, 06:27:03 AM

Well compare them. The MAP is the power valve the TPS is the accelerator pump the ect is the CHOKE and the MASS AIR tells the ECM how much air the engine is consuming.(other than speed density) And the ECM controls the amount of fuel and the mixture with the O2 that is available to the engine when it takes in all these inputs. If you are a young man and want to build cars in the future better learn EFI FAST. Also DIS systems are coming down the pike on many models as we speak. EFI makes much more HP and is easier to tune. Has better throttle response and all around a better way to feed the beast!!! So as the song says ( THINGS THEY ARE A CHANGING!!!)

Simply put a map is used in stead of a MAF sensor for speed density. Simple comparison.

Remember when engines had DISTRIBUTORS ??? Do they still make them also!!!

Hard starting..

Reply #23 – November 04, 2012, 09:09:27 AM

shad1965,
I've been reading your thread since you posted. If I knew what I was talking about I would have tried to help you. All you guy's out east, I'm praying for you! Tom, just so you know.....I could hear you singing and I'm way over here in Arizona!!! Give a poor guy some kind of warning would you??

Hard starting..

Reply #24 – November 04, 2012, 10:53:56 AM

Um, efi does not always make much more hp, and easier to tune depends on who the one doing the tuning is.

Hard starting..

Reply #25 – November 04, 2012, 11:17:46 AM

if you do put on a new TPS, just mounting it may not cut it.
pay attention to the way it mounts.

upon mounting and plugging in, you may not have less than a volt on the gree wire.
if so, you use a rat tail file to oblong the tps holes in the direction it needs "adjusted.
the 2.3L turbos i think have this feature fromt he factory where the mounting holes are oval.

what you do after you have filed the mounting holes is finger tight the screws down then rotat the tps body itself until you dial in less than 1vDC.

at the end of the day your shooting for the most voltage on the red wire with the trottle body wide open.

Hard starting..

Reply #26 – November 04, 2012, 11:18:59 AM

need to pull the codes though, using a paper clip and with key on engine off.
easy to do, using a 12v buzzer makes it easier.

Hard starting..

Reply #27 – November 04, 2012, 12:13:42 PM

hey guys i replaced the tps..it fired right up..lot more reponsive lol...i will check voltage in morn after work.. now i need to find a iac.....and adjust the timing...
thnx, shad...

Hard starting..

Reply #28 – November 04, 2012, 11:11:31 PM

JAY the amount of voltage is not important. Other than being between app .4 and 1.0. At closed throttle. He had a bad TPS because it was shutting down the injectors during cranking. The ecm was seeing CLEAR FLOOD MODE. This is the only sensor that can do this!!! A quick voltage check between .4 & 1.0 at closed throttle and he is in the ball park.

Stacks EFI systems always makes more HP and torque than a carb. The doughters will cry foul but that is because of lack of experience with the systems. Bottom line no cars today come with carbs and the engines make almost twice the HP of their ansestors with carbs. On the 1320 it is different than on the street.

Hard starting..

Reply #29 – November 04, 2012, 11:14:55 PM

Loosen and then snugged down distributor holddown bolt

Remove the jumper on the two wire plug that's at the base of your distributor

Start the car and just your timing to 10° before top dead center

Shut the car off

Tighten your distributor holddown bolts and then reinstall the sprout shorting plug at the base of your Distributor

Following these instructions will set your timing correctly otherwise you may damage something Electronics wise